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Finding the Fourth Proportional to 123,062.92, 169,830.32 and 69,344.96

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Solution

The fourth proportional to 123,062.92, 169,830.32 and 69,344.96 is: 95,698.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,062.92 : 169,830.32 = 69,344.96 : x
  2. Step 2: Convert to fraction form
    123,062.92/169,830.32 = 69,344.96/x
  3. Step 3: Cross multiply
    123,062.92x = 169,830.32 × 69,344.96
  4. Step 4: Simplify right side
    123,062.92x = 11,776,876,747.19
  5. Step 5: Solve for x
    x = 11,776,876,747.19/123,062.92
  6. Step 6: Final answer
    x = 95,698.01

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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.