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Finding the Fourth Proportional to 86,761.60, 130,166.88 and 24,432.64

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Solution

The fourth proportional to 86,761.60, 130,166.88 and 24,432.64 is: 36,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,761.60 : 130,166.88 = 24,432.64 : x
  2. Step 2: Convert to fraction form
    86,761.60/130,166.88 = 24,432.64/x
  3. Step 3: Cross multiply
    86,761.60x = 130,166.88 × 24,432.64
  4. Step 4: Simplify right side
    86,761.60x = 3,180,320,518.96
  5. Step 5: Solve for x
    x = 3,180,320,518.96/86,761.60
  6. Step 6: Final answer
    x = 36,655.85

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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.