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Finding the Fourth Proportional to 73,366.50, 109,713.33 and 54,659.28

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Solution

The fourth proportional to 73,366.50, 109,713.33 and 54,659.28 is: 81,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,366.50 : 109,713.33 = 54,659.28 : x
  2. Step 2: Convert to fraction form
    73,366.50/109,713.33 = 54,659.28/x
  3. Step 3: Cross multiply
    73,366.50x = 109,713.33 × 54,659.28
  4. Step 4: Simplify right side
    73,366.50x = 5,996,851,624.20
  5. Step 5: Solve for x
    x = 5,996,851,624.20/73,366.50
  6. Step 6: Final answer
    x = 81,738.28

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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.