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Finding the Fourth Proportional to 159,356.49, 238,979.03 and 47,006.88

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Solution

The fourth proportional to 159,356.49, 238,979.03 and 47,006.88 is: 70,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,356.49 : 238,979.03 = 47,006.88 : x
  2. Step 2: Convert to fraction form
    159,356.49/238,979.03 = 47,006.88/x
  3. Step 3: Cross multiply
    159,356.49x = 238,979.03 × 47,006.88
  4. Step 4: Simplify right side
    159,356.49x = 11,233,658,585.73
  5. Step 5: Solve for x
    x = 11,233,658,585.73/159,356.49
  6. Step 6: Final answer
    x = 70,493.89

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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.