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Finding the Fourth Proportional to 252,641.99, 378,773.42 and 152,781.72

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Solution

The fourth proportional to 252,641.99, 378,773.42 and 152,781.72 is: 229,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,641.99 : 378,773.42 = 152,781.72 : x
  2. Step 2: Convert to fraction form
    252,641.99/378,773.42 = 152,781.72/x
  3. Step 3: Cross multiply
    252,641.99x = 378,773.42 × 152,781.72
  4. Step 4: Simplify right side
    252,641.99x = 57,869,653,833.97
  5. Step 5: Solve for x
    x = 57,869,653,833.97/252,641.99
  6. Step 6: Final answer
    x = 229,057.94

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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.