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Finding the Fourth Proportional to 125,297.28, 187,947.14 and 100,304.73

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Solution

The fourth proportional to 125,297.28, 187,947.14 and 100,304.73 is: 150,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,297.28 : 187,947.14 = 100,304.73 : x
  2. Step 2: Convert to fraction form
    125,297.28/187,947.14 = 100,304.73/x
  3. Step 3: Cross multiply
    125,297.28x = 187,947.14 × 100,304.73
  4. Step 4: Simplify right side
    125,297.28x = 18,851,986,630.45
  5. Step 5: Solve for x
    x = 18,851,986,630.45/125,297.28
  6. Step 6: Final answer
    x = 150,458.07

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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.