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Finding the Fourth Proportional to 266,617.68, 367,936.80 and 159,197.10

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Solution

The fourth proportional to 266,617.68, 367,936.80 and 159,197.10 is: 219,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,617.68 : 367,936.80 = 159,197.10 : x
  2. Step 2: Convert to fraction form
    266,617.68/367,936.80 = 159,197.10/x
  3. Step 3: Cross multiply
    266,617.68x = 367,936.80 × 159,197.10
  4. Step 4: Simplify right side
    266,617.68x = 58,574,471,543.28
  5. Step 5: Solve for x
    x = 58,574,471,543.28/266,617.68
  6. Step 6: Final answer
    x = 219,694.63

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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.