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Finding the Fourth Proportional to 125,910.49, 173,765.49 and 70,724.29

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Solution

The fourth proportional to 125,910.49, 173,765.49 and 70,724.29 is: 97,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,910.49 : 173,765.49 = 70,724.29 : x
  2. Step 2: Convert to fraction form
    125,910.49/173,765.49 = 70,724.29/x
  3. Step 3: Cross multiply
    125,910.49x = 173,765.49 × 70,724.29
  4. Step 4: Simplify right side
    125,910.49x = 12,289,440,906.75
  5. Step 5: Solve for x
    x = 12,289,440,906.75/125,910.49
  6. Step 6: Final answer
    x = 97,604.58

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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.