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Finding the Fourth Proportional to 122,759.36, 169,406.25 and 69,044.36

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Solution

The fourth proportional to 122,759.36, 169,406.25 and 69,044.36 is: 95,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,759.36 : 169,406.25 = 69,044.36 : x
  2. Step 2: Convert to fraction form
    122,759.36/169,406.25 = 69,044.36/x
  3. Step 3: Cross multiply
    122,759.36x = 169,406.25 × 69,044.36
  4. Step 4: Simplify right side
    122,759.36x = 11,696,545,005.30
  5. Step 5: Solve for x
    x = 11,696,545,005.30/122,759.36
  6. Step 6: Final answer
    x = 95,280.27

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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.