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Finding the Fourth Proportional to 73,306.80, 101,164.56 and 39,772.80

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Solution

The fourth proportional to 73,306.80, 101,164.56 and 39,772.80 is: 54,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,306.80 : 101,164.56 = 39,772.80 : x
  2. Step 2: Convert to fraction form
    73,306.80/101,164.56 = 39,772.80/x
  3. Step 3: Cross multiply
    73,306.80x = 101,164.56 × 39,772.80
  4. Step 4: Simplify right side
    73,306.80x = 4,023,597,811.97
  5. Step 5: Solve for x
    x = 4,023,597,811.97/73,306.80
  6. Step 6: Final answer
    x = 54,887.10

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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.