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Finding the Fourth Proportional to 159,708.48, 239,614.56 and 76,608.96

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Solution

The fourth proportional to 159,708.48, 239,614.56 and 76,608.96 is: 114,938.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,708.48 : 239,614.56 = 76,608.96 : x
  2. Step 2: Convert to fraction form
    159,708.48/239,614.56 = 76,608.96/x
  3. Step 3: Cross multiply
    159,708.48x = 239,614.56 × 76,608.96
  4. Step 4: Simplify right side
    159,708.48x = 18,356,622,242.46
  5. Step 5: Solve for x
    x = 18,356,622,242.46/159,708.48
  6. Step 6: Final answer
    x = 114,938.31

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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.