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Finding the Fourth Proportional to 71,531.60, 98,714.01 and 44,689.70

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Solution

The fourth proportional to 71,531.60, 98,714.01 and 44,689.70 is: 61,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,531.60 : 98,714.01 = 44,689.70 : x
  2. Step 2: Convert to fraction form
    71,531.60/98,714.01 = 44,689.70/x
  3. Step 3: Cross multiply
    71,531.60x = 98,714.01 × 44,689.70
  4. Step 4: Simplify right side
    71,531.60x = 4,411,498,999.13
  5. Step 5: Solve for x
    x = 4,411,498,999.13/71,531.60
  6. Step 6: Final answer
    x = 61,672.03

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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.