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Finding the Fourth Proportional to 226,920.53, 313,147.75 and 124,943.87

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Solution

The fourth proportional to 226,920.53, 313,147.75 and 124,943.87 is: 172,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,920.53 : 313,147.75 = 124,943.87 : x
  2. Step 2: Convert to fraction form
    226,920.53/313,147.75 = 124,943.87/x
  3. Step 3: Cross multiply
    226,920.53x = 313,147.75 × 124,943.87
  4. Step 4: Simplify right side
    226,920.53x = 39,125,889,576.33
  5. Step 5: Solve for x
    x = 39,125,889,576.33/226,920.53
  6. Step 6: Final answer
    x = 172,421.11

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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.