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Finding the Fourth Proportional to 178,737.20, 268,141.80 and 52,377.20

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Solution

The fourth proportional to 178,737.20, 268,141.80 and 52,377.20 is: 78,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,737.20 : 268,141.80 = 52,377.20 : x
  2. Step 2: Convert to fraction form
    178,737.20/268,141.80 = 52,377.20/x
  3. Step 3: Cross multiply
    178,737.20x = 268,141.80 × 52,377.20
  4. Step 4: Simplify right side
    178,737.20x = 14,044,516,686.96
  5. Step 5: Solve for x
    x = 14,044,516,686.96/178,737.20
  6. Step 6: Final answer
    x = 78,576.35

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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.