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Finding the Fourth Proportional to 71,602.43, 98,789.11 and 41,376.74

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Solution

The fourth proportional to 71,602.43, 98,789.11 and 41,376.74 is: 57,087.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,602.43 : 98,789.11 = 41,376.74 : x
  2. Step 2: Convert to fraction form
    71,602.43/98,789.11 = 41,376.74/x
  3. Step 3: Cross multiply
    71,602.43x = 98,789.11 × 41,376.74
  4. Step 4: Simplify right side
    71,602.43x = 4,087,570,721.91
  5. Step 5: Solve for x
    x = 4,087,570,721.91/71,602.43
  6. Step 6: Final answer
    x = 57,087.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.