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Finding the Fourth Proportional to 356,659.91, 534,654.96 and 119,836.97

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Solution

The fourth proportional to 356,659.91, 534,654.96 and 119,836.97 is: 179,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,659.91 : 534,654.96 = 119,836.97 : x
  2. Step 2: Convert to fraction form
    356,659.91/534,654.96 = 119,836.97/x
  3. Step 3: Cross multiply
    356,659.91x = 534,654.96 × 119,836.97
  4. Step 4: Simplify right side
    356,659.91x = 64,071,430,401.87
  5. Step 5: Solve for x
    x = 64,071,430,401.87/356,659.91
  6. Step 6: Final answer
    x = 179,642.93

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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.