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Finding the Fourth Proportional to 71,531.61, 98,709.03 and 44,672.52

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Solution

The fourth proportional to 71,531.61, 98,709.03 and 44,672.52 is: 61,645.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,531.61 : 98,709.03 = 44,672.52 : x
  2. Step 2: Convert to fraction form
    71,531.61/98,709.03 = 44,672.52/x
  3. Step 3: Cross multiply
    71,531.61x = 98,709.03 × 44,672.52
  4. Step 4: Simplify right side
    71,531.61x = 4,409,581,116.86
  5. Step 5: Solve for x
    x = 4,409,581,116.86/71,531.61
  6. Step 6: Final answer
    x = 61,645.21

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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.