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Finding the Fourth Proportional to 159,577.28, 239,162.40 and 84,733.28

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Solution

The fourth proportional to 159,577.28, 239,162.40 and 84,733.28 is: 126,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,577.28 : 239,162.40 = 84,733.28 : x
  2. Step 2: Convert to fraction form
    159,577.28/239,162.40 = 84,733.28/x
  3. Step 3: Cross multiply
    159,577.28x = 239,162.40 × 84,733.28
  4. Step 4: Simplify right side
    159,577.28x = 20,265,013,408.86
  5. Step 5: Solve for x
    x = 20,265,013,408.86/159,577.28
  6. Step 6: Final answer
    x = 126,991.85

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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.