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Finding the Fourth Proportional to 122,565.96, 169,098.57 and 68,843.52

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Solution

The fourth proportional to 122,565.96, 169,098.57 and 68,843.52 is: 94,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,565.96 : 169,098.57 = 68,843.52 : x
  2. Step 2: Convert to fraction form
    122,565.96/169,098.57 = 68,843.52/x
  3. Step 3: Cross multiply
    122,565.96x = 169,098.57 × 68,843.52
  4. Step 4: Simplify right side
    122,565.96x = 11,641,340,785.77
  5. Step 5: Solve for x
    x = 11,641,340,785.77/122,565.96
  6. Step 6: Final answer
    x = 94,980.21

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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.