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Finding the Fourth Proportional to 272,521.43, 408,765.31 and 101,709.89

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Solution

The fourth proportional to 272,521.43, 408,765.31 and 101,709.89 is: 152,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,521.43 : 408,765.31 = 101,709.89 : x
  2. Step 2: Convert to fraction form
    272,521.43/408,765.31 = 101,709.89/x
  3. Step 3: Cross multiply
    272,521.43x = 408,765.31 × 101,709.89
  4. Step 4: Simplify right side
    272,521.43x = 41,575,474,715.92
  5. Step 5: Solve for x
    x = 41,575,474,715.92/272,521.43
  6. Step 6: Final answer
    x = 152,558.55

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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.