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Finding the Fourth Proportional to 123,020.60, 169,767.62 and 69,322.92

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Solution

The fourth proportional to 123,020.60, 169,767.62 and 69,322.92 is: 95,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,020.60 : 169,767.62 = 69,322.92 : x
  2. Step 2: Convert to fraction form
    123,020.60/169,767.62 = 69,322.92/x
  3. Step 3: Cross multiply
    123,020.60x = 169,767.62 × 69,322.92
  4. Step 4: Simplify right side
    123,020.60x = 11,768,787,139.85
  5. Step 5: Solve for x
    x = 11,768,787,139.85/123,020.60
  6. Step 6: Final answer
    x = 95,665.17

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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.