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Finding the Fourth Proportional to 266,691.05, 368,003.42 and 157,798.73

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Solution

The fourth proportional to 266,691.05, 368,003.42 and 157,798.73 is: 217,744.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,691.05 : 368,003.42 = 157,798.73 : x
  2. Step 2: Convert to fraction form
    266,691.05/368,003.42 = 157,798.73/x
  3. Step 3: Cross multiply
    266,691.05x = 368,003.42 × 157,798.73
  4. Step 4: Simplify right side
    266,691.05x = 58,070,469,682.65
  5. Step 5: Solve for x
    x = 58,070,469,682.65/266,691.05
  6. Step 6: Final answer
    x = 217,744.36

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1.5x scale

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.