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Finding the Fourth Proportional to 71,374.53, 98,543.07 and 45,892.34

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Solution

The fourth proportional to 71,374.53, 98,543.07 and 45,892.34 is: 63,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,374.53 : 98,543.07 = 45,892.34 : x
  2. Step 2: Convert to fraction form
    71,374.53/98,543.07 = 45,892.34/x
  3. Step 3: Cross multiply
    71,374.53x = 98,543.07 × 45,892.34
  4. Step 4: Simplify right side
    71,374.53x = 4,522,372,073.08
  5. Step 5: Solve for x
    x = 4,522,372,073.08/71,374.53
  6. Step 6: Final answer
    x = 63,361.15

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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.