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Finding the Fourth Proportional to 159,712.48, 239,560.48 and 47,393.65

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Solution

The fourth proportional to 159,712.48, 239,560.48 and 47,393.65 is: 71,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,712.48 : 239,560.48 = 47,393.65 : x
  2. Step 2: Convert to fraction form
    159,712.48/239,560.48 = 47,393.65/x
  3. Step 3: Cross multiply
    159,712.48x = 239,560.48 × 47,393.65
  4. Step 4: Simplify right side
    159,712.48x = 11,353,645,542.95
  5. Step 5: Solve for x
    x = 11,353,645,542.95/159,712.48
  6. Step 6: Final answer
    x = 71,088.03

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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.