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Finding the Fourth Proportional to 266,769.90, 368,191.71 and 171,395.82

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Solution

The fourth proportional to 266,769.90, 368,191.71 and 171,395.82 is: 236,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,769.90 : 368,191.71 = 171,395.82 : x
  2. Step 2: Convert to fraction form
    266,769.90/368,191.71 = 171,395.82/x
  3. Step 3: Cross multiply
    266,769.90x = 368,191.71 × 171,395.82
  4. Step 4: Simplify right side
    266,769.90x = 63,106,520,052.65
  5. Step 5: Solve for x
    x = 63,106,520,052.65/266,769.90
  6. Step 6: Final answer
    x = 236,557.87

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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.