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Finding the Fourth Proportional to 266,362.32, 399,558.84 and 100,151.76

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Solution

The fourth proportional to 266,362.32, 399,558.84 and 100,151.76 is: 150,233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,362.32 : 399,558.84 = 100,151.76 : x
  2. Step 2: Convert to fraction form
    266,362.32/399,558.84 = 100,151.76/x
  3. Step 3: Cross multiply
    266,362.32x = 399,558.84 × 100,151.76
  4. Step 4: Simplify right side
    266,362.32x = 40,016,521,049.56
  5. Step 5: Solve for x
    x = 40,016,521,049.56/266,362.32
  6. Step 6: Final answer
    x = 150,233.42

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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.