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Finding the Fourth Proportional to 125,437.60, 188,010.60 and 50,520.70

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Solution

The fourth proportional to 125,437.60, 188,010.60 and 50,520.70 is: 75,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,437.60 : 188,010.60 = 50,520.70 : x
  2. Step 2: Convert to fraction form
    125,437.60/188,010.60 = 50,520.70/x
  3. Step 3: Cross multiply
    125,437.60x = 188,010.60 × 50,520.70
  4. Step 4: Simplify right side
    125,437.60x = 9,498,427,119.42
  5. Step 5: Solve for x
    x = 9,498,427,119.42/125,437.60
  6. Step 6: Final answer
    x = 75,722.33

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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.