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Finding the Fourth Proportional to 123,060.78, 169,824.57 and 69,346.62

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Solution

The fourth proportional to 123,060.78, 169,824.57 and 69,346.62 is: 95,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,060.78 : 169,824.57 = 69,346.62 : x
  2. Step 2: Convert to fraction form
    123,060.78/169,824.57 = 69,346.62/x
  3. Step 3: Cross multiply
    123,060.78x = 169,824.57 × 69,346.62
  4. Step 4: Simplify right side
    123,060.78x = 11,776,759,922.45
  5. Step 5: Solve for x
    x = 11,776,759,922.45/123,060.78
  6. Step 6: Final answer
    x = 95,698.73

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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.