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Finding the Fourth Proportional to 150,577.32, 225,891.90 and 80,437.80

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Solution

The fourth proportional to 150,577.32, 225,891.90 and 80,437.80 is: 120,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,577.32 : 225,891.90 = 80,437.80 : x
  2. Step 2: Convert to fraction form
    150,577.32/225,891.90 = 80,437.80/x
  3. Step 3: Cross multiply
    150,577.32x = 225,891.90 × 80,437.80
  4. Step 4: Simplify right side
    150,577.32x = 18,170,247,473.82
  5. Step 5: Solve for x
    x = 18,170,247,473.82/150,577.32
  6. Step 6: Final answer
    x = 120,670.55

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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.