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Finding the Fourth Proportional to 60,640.29, 90,999.32 and 29,458.53

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Solution

The fourth proportional to 60,640.29, 90,999.32 and 29,458.53 is: 44,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,640.29 : 90,999.32 = 29,458.53 : x
  2. Step 2: Convert to fraction form
    60,640.29/90,999.32 = 29,458.53/x
  3. Step 3: Cross multiply
    60,640.29x = 90,999.32 × 29,458.53
  4. Step 4: Simplify right side
    60,640.29x = 2,680,706,050.91
  5. Step 5: Solve for x
    x = 2,680,706,050.91/60,640.29
  6. Step 6: Final answer
    x = 44,206.68

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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.