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Finding the Fourth Proportional to 83,116.80, 124,499.70 and 55,050.30

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Solution

The fourth proportional to 83,116.80, 124,499.70 and 55,050.30 is: 82,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,116.80 : 124,499.70 = 55,050.30 : x
  2. Step 2: Convert to fraction form
    83,116.80/124,499.70 = 55,050.30/x
  3. Step 3: Cross multiply
    83,116.80x = 124,499.70 × 55,050.30
  4. Step 4: Simplify right side
    83,116.80x = 6,853,745,834.91
  5. Step 5: Solve for x
    x = 6,853,745,834.91/83,116.80
  6. Step 6: Final answer
    x = 82,459.21

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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.