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Finding the Fourth Proportional to 122,963.46, 169,687.77 and 69,248.58

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Solution

The fourth proportional to 122,963.46, 169,687.77 and 69,248.58 is: 95,562.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,963.46 : 169,687.77 = 69,248.58 : x
  2. Step 2: Convert to fraction form
    122,963.46/169,687.77 = 69,248.58/x
  3. Step 3: Cross multiply
    122,963.46x = 169,687.77 × 69,248.58
  4. Step 4: Simplify right side
    122,963.46x = 11,750,637,115.87
  5. Step 5: Solve for x
    x = 11,750,637,115.87/122,963.46
  6. Step 6: Final answer
    x = 95,562.02

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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.