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Finding the Fourth Proportional to 123,593.73, 170,557.56 and 69,876.96

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Solution

The fourth proportional to 123,593.73, 170,557.56 and 69,876.96 is: 96,429.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,593.73 : 170,557.56 = 69,876.96 : x
  2. Step 2: Convert to fraction form
    123,593.73/170,557.56 = 69,876.96/x
  3. Step 3: Cross multiply
    123,593.73x = 170,557.56 × 69,876.96
  4. Step 4: Simplify right side
    123,593.73x = 11,918,043,797.82
  5. Step 5: Solve for x
    x = 11,918,043,797.82/123,593.73
  6. Step 6: Final answer
    x = 96,429.19

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1.5x scale

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.