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Finding the Fourth Proportional to 83,616.30, 125,424.45 and 73,774.80

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Solution

The fourth proportional to 83,616.30, 125,424.45 and 73,774.80 is: 110,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.30 : 125,424.45 = 73,774.80 : x
  2. Step 2: Convert to fraction form
    83,616.30/125,424.45 = 73,774.80/x
  3. Step 3: Cross multiply
    83,616.30x = 125,424.45 × 73,774.80
  4. Step 4: Simplify right side
    83,616.30x = 9,253,163,713.86
  5. Step 5: Solve for x
    x = 9,253,163,713.86/83,616.30
  6. Step 6: Final answer
    x = 110,662.20

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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.