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Finding the Fourth Proportional to 89,882.64, 124,015.92 and 54,948.48

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Solution

The fourth proportional to 89,882.64, 124,015.92 and 54,948.48 is: 75,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,882.64 : 124,015.92 = 54,948.48 : x
  2. Step 2: Convert to fraction form
    89,882.64/124,015.92 = 54,948.48/x
  3. Step 3: Cross multiply
    89,882.64x = 124,015.92 × 54,948.48
  4. Step 4: Simplify right side
    89,882.64x = 6,814,486,299.80
  5. Step 5: Solve for x
    x = 6,814,486,299.80/89,882.64
  6. Step 6: Final answer
    x = 75,815.38

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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.