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Finding the Fourth Proportional to 84,593.84, 126,948.18 and 45,179.24

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Solution

The fourth proportional to 84,593.84, 126,948.18 and 45,179.24 is: 67,799.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,593.84 : 126,948.18 = 45,179.24 : x
  2. Step 2: Convert to fraction form
    84,593.84/126,948.18 = 45,179.24/x
  3. Step 3: Cross multiply
    84,593.84x = 126,948.18 × 45,179.24
  4. Step 4: Simplify right side
    84,593.84x = 5,735,422,291.78
  5. Step 5: Solve for x
    x = 5,735,422,291.78/84,593.84
  6. Step 6: Final answer
    x = 67,799.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.