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Finding the Fourth Proportional to 123,618.58, 170,593.74 and 67,029.96

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Solution

The fourth proportional to 123,618.58, 170,593.74 and 67,029.96 is: 92,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,618.58 : 170,593.74 = 67,029.96 : x
  2. Step 2: Convert to fraction form
    123,618.58/170,593.74 = 67,029.96/x
  3. Step 3: Cross multiply
    123,618.58x = 170,593.74 × 67,029.96
  4. Step 4: Simplify right side
    123,618.58x = 11,434,891,568.45
  5. Step 5: Solve for x
    x = 11,434,891,568.45/123,618.58
  6. Step 6: Final answer
    x = 92,501.40

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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.