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Finding the Fourth Proportional to 159,581.43, 239,346.23 and 75,341.43

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Solution

The fourth proportional to 159,581.43, 239,346.23 and 75,341.43 is: 112,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,581.43 : 239,346.23 = 75,341.43 : x
  2. Step 2: Convert to fraction form
    159,581.43/239,346.23 = 75,341.43/x
  3. Step 3: Cross multiply
    159,581.43x = 239,346.23 × 75,341.43
  4. Step 4: Simplify right side
    159,581.43x = 18,032,686,856.60
  5. Step 5: Solve for x
    x = 18,032,686,856.60/159,581.43
  6. Step 6: Final answer
    x = 112,999.91

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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.