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Finding the Fourth Proportional to 38,221,814.90, 53,661,706.30 and 38,221,814.90

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Solution

The fourth proportional to 38,221,814.90, 53,661,706.30 and 38,221,814.90 is: 53,661,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,221,814.90 : 53,661,706.30 = 38,221,814.90 : x
  2. Step 2: Convert to fraction form
    38,221,814.90/53,661,706.30 = 38,221,814.90/x
  3. Step 3: Cross multiply
    38,221,814.90x = 53,661,706.30 × 38,221,814.90
  4. Step 4: Simplify right side
    38,221,814.90x = 2,051,047,805,416,763.75
  5. Step 5: Solve for x
    x = 2,051,047,805,416,763.75/38,221,814.90
  6. Step 6: Final answer
    x = 53,661,706.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.