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Finding the Fourth Proportional to 356,658.91, 534,653.46 and 119,835.97

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Solution

The fourth proportional to 356,658.91, 534,653.46 and 119,835.97 is: 179,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,658.91 : 534,653.46 = 119,835.97 : x
  2. Step 2: Convert to fraction form
    356,658.91/534,653.46 = 119,835.97/x
  3. Step 3: Cross multiply
    356,658.91x = 534,653.46 × 119,835.97
  4. Step 4: Simplify right side
    356,658.91x = 64,070,715,992.96
  5. Step 5: Solve for x
    x = 64,070,715,992.96/356,658.91
  6. Step 6: Final answer
    x = 179,641.43

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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.