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Finding the Fourth Proportional to 60,902.40, 91,293.12 and 29,305.92

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Solution

The fourth proportional to 60,902.40, 91,293.12 and 29,305.92 is: 43,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,902.40 : 91,293.12 = 29,305.92 : x
  2. Step 2: Convert to fraction form
    60,902.40/91,293.12 = 29,305.92/x
  3. Step 3: Cross multiply
    60,902.40x = 91,293.12 × 29,305.92
  4. Step 4: Simplify right side
    60,902.40x = 2,675,428,871.27
  5. Step 5: Solve for x
    x = 2,675,428,871.27/60,902.40
  6. Step 6: Final answer
    x = 43,929.78

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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.