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Finding the Fourth Proportional to 125,393.79, 173,042.96 and 68,806.11

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Solution

The fourth proportional to 125,393.79, 173,042.96 and 68,806.11 is: 94,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,393.79 : 173,042.96 = 68,806.11 : x
  2. Step 2: Convert to fraction form
    125,393.79/173,042.96 = 68,806.11/x
  3. Step 3: Cross multiply
    125,393.79x = 173,042.96 × 68,806.11
  4. Step 4: Simplify right side
    125,393.79x = 11,906,412,596.46
  5. Step 5: Solve for x
    x = 11,906,412,596.46/125,393.79
  6. Step 6: Final answer
    x = 94,952.17

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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.