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Finding the Fourth Proportional to 144,956.70, 217,872.45 and 125,711.10

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Solution

The fourth proportional to 144,956.70, 217,872.45 and 125,711.10 is: 188,945.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,956.70 : 217,872.45 = 125,711.10 : x
  2. Step 2: Convert to fraction form
    144,956.70/217,872.45 = 125,711.10/x
  3. Step 3: Cross multiply
    144,956.70x = 217,872.45 × 125,711.10
  4. Step 4: Simplify right side
    144,956.70x = 27,388,985,349.20
  5. Step 5: Solve for x
    x = 27,388,985,349.20/144,956.70
  6. Step 6: Final answer
    x = 188,945.98

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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.