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Finding the Fourth Proportional to 74,422.70, 111,504.45 and 64,054.70

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Solution

The fourth proportional to 74,422.70, 111,504.45 and 64,054.70 is: 95,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.70 : 111,504.45 = 64,054.70 : x
  2. Step 2: Convert to fraction form
    74,422.70/111,504.45 = 64,054.70/x
  3. Step 3: Cross multiply
    74,422.70x = 111,504.45 × 64,054.70
  4. Step 4: Simplify right side
    74,422.70x = 7,142,384,093.42
  5. Step 5: Solve for x
    x = 7,142,384,093.42/74,422.70
  6. Step 6: Final answer
    x = 95,970.50

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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.