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Finding the Fourth Proportional to 172,294.84, 237,732.02 and 100,661.03

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Solution

The fourth proportional to 172,294.84, 237,732.02 and 100,661.03 is: 138,891.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,294.84 : 237,732.02 = 100,661.03 : x
  2. Step 2: Convert to fraction form
    172,294.84/237,732.02 = 100,661.03/x
  3. Step 3: Cross multiply
    172,294.84x = 237,732.02 × 100,661.03
  4. Step 4: Simplify right side
    172,294.84x = 23,930,349,997.18
  5. Step 5: Solve for x
    x = 23,930,349,997.18/172,294.84
  6. Step 6: Final answer
    x = 138,891.86

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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.