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Finding the Fourth Proportional to 192,872.52, 266,106.50 and 124,781.64

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Solution

The fourth proportional to 192,872.52, 266,106.50 and 124,781.64 is: 172,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,872.52 : 266,106.50 = 124,781.64 : x
  2. Step 2: Convert to fraction form
    192,872.52/266,106.50 = 124,781.64/x
  3. Step 3: Cross multiply
    192,872.52x = 266,106.50 × 124,781.64
  4. Step 4: Simplify right side
    192,872.52x = 33,205,205,484.66
  5. Step 5: Solve for x
    x = 33,205,205,484.66/192,872.52
  6. Step 6: Final answer
    x = 172,161.41

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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.