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Finding the Fourth Proportional to 266,521.70, 367,764.40 and 171,157.56

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Solution

The fourth proportional to 266,521.70, 367,764.40 and 171,157.56 is: 236,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,521.70 : 367,764.40 = 171,157.56 : x
  2. Step 2: Convert to fraction form
    266,521.70/367,764.40 = 171,157.56/x
  3. Step 3: Cross multiply
    266,521.70x = 367,764.40 × 171,157.56
  4. Step 4: Simplify right side
    266,521.70x = 62,945,657,358.86
  5. Step 5: Solve for x
    x = 62,945,657,358.86/266,521.70
  6. Step 6: Final answer
    x = 236,174.61

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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.