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Finding the Fourth Proportional to 71,154.87, 98,191.05 and 40,944.86

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Solution

The fourth proportional to 71,154.87, 98,191.05 and 40,944.86 is: 56,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,154.87 : 98,191.05 = 40,944.86 : x
  2. Step 2: Convert to fraction form
    71,154.87/98,191.05 = 40,944.86/x
  3. Step 3: Cross multiply
    71,154.87x = 98,191.05 × 40,944.86
  4. Step 4: Simplify right side
    71,154.87x = 4,020,418,304.55
  5. Step 5: Solve for x
    x = 4,020,418,304.55/71,154.87
  6. Step 6: Final answer
    x = 56,502.36

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1.5x scale

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.