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Finding the Fourth Proportional to 266,785.52, 400,178.95 and 109,013.94

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Solution

The fourth proportional to 266,785.52, 400,178.95 and 109,013.94 is: 163,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,785.52 : 400,178.95 = 109,013.94 : x
  2. Step 2: Convert to fraction form
    266,785.52/400,178.95 = 109,013.94/x
  3. Step 3: Cross multiply
    266,785.52x = 400,178.95 × 109,013.94
  4. Step 4: Simplify right side
    266,785.52x = 43,625,083,772.03
  5. Step 5: Solve for x
    x = 43,625,083,772.03/266,785.52
  6. Step 6: Final answer
    x = 163,521.19

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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.