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Finding the Fourth Proportional to 125,553.62, 173,266.90 and 68,966.22

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Solution

The fourth proportional to 125,553.62, 173,266.90 and 68,966.22 is: 95,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,553.62 : 173,266.90 = 68,966.22 : x
  2. Step 2: Convert to fraction form
    125,553.62/173,266.90 = 68,966.22/x
  3. Step 3: Cross multiply
    125,553.62x = 173,266.90 × 68,966.22
  4. Step 4: Simplify right side
    125,553.62x = 11,949,563,144.12
  5. Step 5: Solve for x
    x = 11,949,563,144.12/125,553.62
  6. Step 6: Final answer
    x = 95,174.98

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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.