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Finding the Fourth Proportional to 75,086.13, 112,629.10 and 34,555.56

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Solution

The fourth proportional to 75,086.13, 112,629.10 and 34,555.56 is: 51,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,086.13 : 112,629.10 = 34,555.56 : x
  2. Step 2: Convert to fraction form
    75,086.13/112,629.10 = 34,555.56/x
  3. Step 3: Cross multiply
    75,086.13x = 112,629.10 × 34,555.56
  4. Step 4: Simplify right side
    75,086.13x = 3,891,961,622.80
  5. Step 5: Solve for x
    x = 3,891,961,622.80/75,086.13
  6. Step 6: Final answer
    x = 51,833.30

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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.