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Finding the Fourth Proportional to 71,568.60, 107,352.90 and 63,695.40

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Solution

The fourth proportional to 71,568.60, 107,352.90 and 63,695.40 is: 95,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.60 : 107,352.90 = 63,695.40 : x
  2. Step 2: Convert to fraction form
    71,568.60/107,352.90 = 63,695.40/x
  3. Step 3: Cross multiply
    71,568.60x = 107,352.90 × 63,695.40
  4. Step 4: Simplify right side
    71,568.60x = 6,837,885,906.66
  5. Step 5: Solve for x
    x = 6,837,885,906.66/71,568.60
  6. Step 6: Final answer
    x = 95,543.10

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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.