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Finding the Fourth Proportional to 86,577.96, 129,768.60 and 36,626.88

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Solution

The fourth proportional to 86,577.96, 129,768.60 and 36,626.88 is: 54,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,577.96 : 129,768.60 = 36,626.88 : x
  2. Step 2: Convert to fraction form
    86,577.96/129,768.60 = 36,626.88/x
  3. Step 3: Cross multiply
    86,577.96x = 129,768.60 × 36,626.88
  4. Step 4: Simplify right side
    86,577.96x = 4,753,018,939.97
  5. Step 5: Solve for x
    x = 4,753,018,939.97/86,577.96
  6. Step 6: Final answer
    x = 54,898.72

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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.