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Finding the Fourth Proportional to 122,966.64, 169,694.54 and 69,252.57

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Solution

The fourth proportional to 122,966.64, 169,694.54 and 69,252.57 is: 95,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,966.64 : 169,694.54 = 69,252.57 : x
  2. Step 2: Convert to fraction form
    122,966.64/169,694.54 = 69,252.57/x
  3. Step 3: Cross multiply
    122,966.64x = 169,694.54 × 69,252.57
  4. Step 4: Simplify right side
    122,966.64x = 11,751,781,815.23
  5. Step 5: Solve for x
    x = 11,751,781,815.23/122,966.64
  6. Step 6: Final answer
    x = 95,568.87

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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.