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Finding the Fourth Proportional to 169,565.72, 233,992.09 and 100,658.13

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Solution

The fourth proportional to 169,565.72, 233,992.09 and 100,658.13 is: 138,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,565.72 : 233,992.09 = 100,658.13 : x
  2. Step 2: Convert to fraction form
    169,565.72/233,992.09 = 100,658.13/x
  3. Step 3: Cross multiply
    169,565.72x = 233,992.09 × 100,658.13
  4. Step 4: Simplify right side
    169,565.72x = 23,553,205,462.54
  5. Step 5: Solve for x
    x = 23,553,205,462.54/169,565.72
  6. Step 6: Final answer
    x = 138,903.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.