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Finding the Fourth Proportional to 132,028.28, 182,211.90 and 75,447.80

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Solution

The fourth proportional to 132,028.28, 182,211.90 and 75,447.80 is: 104,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,028.28 : 182,211.90 = 75,447.80 : x
  2. Step 2: Convert to fraction form
    132,028.28/182,211.90 = 75,447.80/x
  3. Step 3: Cross multiply
    132,028.28x = 182,211.90 × 75,447.80
  4. Step 4: Simplify right side
    132,028.28x = 13,747,486,988.82
  5. Step 5: Solve for x
    x = 13,747,486,988.82/132,028.28
  6. Step 6: Final answer
    x = 104,125.32

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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.