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Finding the Fourth Proportional to 74,626,010.70, 111,939,016.05 and 48,797,978.10

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Solution

The fourth proportional to 74,626,010.70, 111,939,016.05 and 48,797,978.10 is: 73,196,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,626,010.70 : 111,939,016.05 = 48,797,978.10 : x
  2. Step 2: Convert to fraction form
    74,626,010.70/111,939,016.05 = 48,797,978.10/x
  3. Step 3: Cross multiply
    74,626,010.70x = 111,939,016.05 × 48,797,978.10
  4. Step 4: Simplify right side
    74,626,010.70x = 5,462,397,653,743,449
  5. Step 5: Solve for x
    x = 5,462,397,653,743,449/74,626,010.70
  6. Step 6: Final answer
    x = 73,196,967.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.