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Finding the Fourth Proportional to 159,379.57, 239,031.08 and 47,029.43

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Solution

The fourth proportional to 159,379.57, 239,031.08 and 47,029.43 is: 70,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,379.57 : 239,031.08 = 47,029.43 : x
  2. Step 2: Convert to fraction form
    159,379.57/239,031.08 = 47,029.43/x
  3. Step 3: Cross multiply
    159,379.57x = 239,031.08 × 47,029.43
  4. Step 4: Simplify right side
    159,379.57x = 11,241,495,444.68
  5. Step 5: Solve for x
    x = 11,241,495,444.68/159,379.57
  6. Step 6: Final answer
    x = 70,532.85

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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.