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Finding the Fourth Proportional to 124,964.25, 172,450.67 and 68,375.63

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Solution

The fourth proportional to 124,964.25, 172,450.67 and 68,375.63 is: 94,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,964.25 : 172,450.67 = 68,375.63 : x
  2. Step 2: Convert to fraction form
    124,964.25/172,450.67 = 68,375.63/x
  3. Step 3: Cross multiply
    124,964.25x = 172,450.67 × 68,375.63
  4. Step 4: Simplify right side
    124,964.25x = 11,791,422,001.04
  5. Step 5: Solve for x
    x = 11,791,422,001.04/124,964.25
  6. Step 6: Final answer
    x = 94,358.36

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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.