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Finding the Fourth Proportional to 159,494.76, 239,279.20 and 54,314.64

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Solution

The fourth proportional to 159,494.76, 239,279.20 and 54,314.64 is: 81,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,494.76 : 239,279.20 = 54,314.64 : x
  2. Step 2: Convert to fraction form
    159,494.76/239,279.20 = 54,314.64/x
  3. Step 3: Cross multiply
    159,494.76x = 239,279.20 × 54,314.64
  4. Step 4: Simplify right side
    159,494.76x = 12,996,363,607.49
  5. Step 5: Solve for x
    x = 12,996,363,607.49/159,494.76
  6. Step 6: Final answer
    x = 81,484.58

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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.