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Finding the Fourth Proportional to 125,425.56, 173,086.80 and 68,065.14

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Solution

The fourth proportional to 125,425.56, 173,086.80 and 68,065.14 is: 93,929.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,425.56 : 173,086.80 = 68,065.14 : x
  2. Step 2: Convert to fraction form
    125,425.56/173,086.80 = 68,065.14/x
  3. Step 3: Cross multiply
    125,425.56x = 173,086.80 × 68,065.14
  4. Step 4: Simplify right side
    125,425.56x = 11,781,177,274.15
  5. Step 5: Solve for x
    x = 11,781,177,274.15/125,425.56
  6. Step 6: Final answer
    x = 93,929.64

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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.