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Finding the Fourth Proportional to 87,655.92, 131,317.80 and 52,041.84

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Solution

The fourth proportional to 87,655.92, 131,317.80 and 52,041.84 is: 77,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,655.92 : 131,317.80 = 52,041.84 : x
  2. Step 2: Convert to fraction form
    87,655.92/131,317.80 = 52,041.84/x
  3. Step 3: Cross multiply
    87,655.92x = 131,317.80 × 52,041.84
  4. Step 4: Simplify right side
    87,655.92x = 6,834,019,936.75
  5. Step 5: Solve for x
    x = 6,834,019,936.75/87,655.92
  6. Step 6: Final answer
    x = 77,964.16

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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.