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Finding the Fourth Proportional to 240,644.72, 360,966.17 and 82,872.72

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Solution

The fourth proportional to 240,644.72, 360,966.17 and 82,872.72 is: 124,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,644.72 : 360,966.17 = 82,872.72 : x
  2. Step 2: Convert to fraction form
    240,644.72/360,966.17 = 82,872.72/x
  3. Step 3: Cross multiply
    240,644.72x = 360,966.17 × 82,872.72
  4. Step 4: Simplify right side
    240,644.72x = 29,914,248,543.06
  5. Step 5: Solve for x
    x = 29,914,248,543.06/240,644.72
  6. Step 6: Final answer
    x = 124,308.77

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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.