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Finding the Fourth Proportional to 80,700.95, 121,070.85 and 25,296.95

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Solution

The fourth proportional to 80,700.95, 121,070.85 and 25,296.95 is: 37,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,700.95 : 121,070.85 = 25,296.95 : x
  2. Step 2: Convert to fraction form
    80,700.95/121,070.85 = 25,296.95/x
  3. Step 3: Cross multiply
    80,700.95x = 121,070.85 × 25,296.95
  4. Step 4: Simplify right side
    80,700.95x = 3,062,722,633.55
  5. Step 5: Solve for x
    x = 3,062,722,633.55/80,700.95
  6. Step 6: Final answer
    x = 37,951.51

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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.