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Finding the Fourth Proportional to 80,722.28, 111,398.28 and 44,913.80

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Solution

The fourth proportional to 80,722.28, 111,398.28 and 44,913.80 is: 61,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,722.28 : 111,398.28 = 44,913.80 : x
  2. Step 2: Convert to fraction form
    80,722.28/111,398.28 = 44,913.80/x
  3. Step 3: Cross multiply
    80,722.28x = 111,398.28 × 44,913.80
  4. Step 4: Simplify right side
    80,722.28x = 5,003,320,068.26
  5. Step 5: Solve for x
    x = 5,003,320,068.26/80,722.28
  6. Step 6: Final answer
    x = 61,981.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.