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Finding the Fourth Proportional to 83,454.80, 124,951.80 and 65,022.80

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Solution

The fourth proportional to 83,454.80, 124,951.80 and 65,022.80 is: 97,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,454.80 : 124,951.80 = 65,022.80 : x
  2. Step 2: Convert to fraction form
    83,454.80/124,951.80 = 65,022.80/x
  3. Step 3: Cross multiply
    83,454.80x = 124,951.80 × 65,022.80
  4. Step 4: Simplify right side
    83,454.80x = 8,124,715,901.04
  5. Step 5: Solve for x
    x = 8,124,715,901.04/83,454.80
  6. Step 6: Final answer
    x = 97,354.69

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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.