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Finding the Fourth Proportional to 344,665.47, 516,998.39 and 157,545.75

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Solution

The fourth proportional to 344,665.47, 516,998.39 and 157,545.75 is: 236,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,665.47 : 516,998.39 = 157,545.75 : x
  2. Step 2: Convert to fraction form
    344,665.47/516,998.39 = 157,545.75/x
  3. Step 3: Cross multiply
    344,665.47x = 516,998.39 × 157,545.75
  4. Step 4: Simplify right side
    344,665.47x = 81,450,898,313.61
  5. Step 5: Solve for x
    x = 81,450,898,313.61/344,665.47
  6. Step 6: Final answer
    x = 236,318.71

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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.