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Finding the Fourth Proportional to 159,482.72, 239,245.95 and 47,171.77

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Solution

The fourth proportional to 159,482.72, 239,245.95 and 47,171.77 is: 70,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482.72 : 239,245.95 = 47,171.77 : x
  2. Step 2: Convert to fraction form
    159,482.72/239,245.95 = 47,171.77/x
  3. Step 3: Cross multiply
    159,482.72x = 239,245.95 × 47,171.77
  4. Step 4: Simplify right side
    159,482.72x = 11,285,654,505.61
  5. Step 5: Solve for x
    x = 11,285,654,505.61/159,482.72
  6. Step 6: Final answer
    x = 70,764.12

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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.