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Finding the Fourth Proportional to 96,082.80, 144,469.80 and 80,876.40

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Solution

The fourth proportional to 96,082.80, 144,469.80 and 80,876.40 is: 121,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,082.80 : 144,469.80 = 80,876.40 : x
  2. Step 2: Convert to fraction form
    96,082.80/144,469.80 = 80,876.40/x
  3. Step 3: Cross multiply
    96,082.80x = 144,469.80 × 80,876.40
  4. Step 4: Simplify right side
    96,082.80x = 11,684,197,332.72
  5. Step 5: Solve for x
    x = 11,684,197,332.72/96,082.80
  6. Step 6: Final answer
    x = 121,605.50

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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.