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Finding the Fourth Proportional to 84,691.44, 127,113.30 and 45,282.24

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Solution

The fourth proportional to 84,691.44, 127,113.30 and 45,282.24 is: 67,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,691.44 : 127,113.30 = 45,282.24 : x
  2. Step 2: Convert to fraction form
    84,691.44/127,113.30 = 45,282.24/x
  3. Step 3: Cross multiply
    84,691.44x = 127,113.30 × 45,282.24
  4. Step 4: Simplify right side
    84,691.44x = 5,755,974,957.79
  5. Step 5: Solve for x
    x = 5,755,974,957.79/84,691.44
  6. Step 6: Final answer
    x = 67,964.07

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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.