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Finding the Fourth Proportional to 83,496.60, 125,244.90 and 21,167.10

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Solution

The fourth proportional to 83,496.60, 125,244.90 and 21,167.10 is: 31,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,496.60 : 125,244.90 = 21,167.10 : x
  2. Step 2: Convert to fraction form
    83,496.60/125,244.90 = 21,167.10/x
  3. Step 3: Cross multiply
    83,496.60x = 125,244.90 × 21,167.10
  4. Step 4: Simplify right side
    83,496.60x = 2,651,071,322.79
  5. Step 5: Solve for x
    x = 2,651,071,322.79/83,496.60
  6. Step 6: Final answer
    x = 31,750.65

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Similar ratio
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1.5x scale

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.