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Finding the Fourth Proportional to 181,958.76, 272,979.68 and 55,616.98

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Solution

The fourth proportional to 181,958.76, 272,979.68 and 55,616.98 is: 83,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,958.76 : 272,979.68 = 55,616.98 : x
  2. Step 2: Convert to fraction form
    181,958.76/272,979.68 = 55,616.98/x
  3. Step 3: Cross multiply
    181,958.76x = 272,979.68 × 55,616.98
  4. Step 4: Simplify right side
    181,958.76x = 15,182,305,402.97
  5. Step 5: Solve for x
    x = 15,182,305,402.97/181,958.76
  6. Step 6: Final answer
    x = 83,438.17

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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.