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Finding the Fourth Proportional to 84,565.61, 126,838.34 and 22,240.97

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Solution

The fourth proportional to 84,565.61, 126,838.34 and 22,240.97 is: 33,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,565.61 : 126,838.34 = 22,240.97 : x
  2. Step 2: Convert to fraction form
    84,565.61/126,838.34 = 22,240.97/x
  3. Step 3: Cross multiply
    84,565.61x = 126,838.34 × 22,240.97
  4. Step 4: Simplify right side
    84,565.61x = 2,821,007,603.58
  5. Step 5: Solve for x
    x = 2,821,007,603.58/84,565.61
  6. Step 6: Final answer
    x = 33,358.80

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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.