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Finding the Fourth Proportional to 125,599.97, 173,208.96 and 82,503.65

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Solution

The fourth proportional to 125,599.97, 173,208.96 and 82,503.65 is: 113,776.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,599.97 : 173,208.96 = 82,503.65 : x
  2. Step 2: Convert to fraction form
    125,599.97/173,208.96 = 82,503.65/x
  3. Step 3: Cross multiply
    125,599.97x = 173,208.96 × 82,503.65
  4. Step 4: Simplify right side
    125,599.97x = 14,290,370,546.66
  5. Step 5: Solve for x
    x = 14,290,370,546.66/125,599.97
  6. Step 6: Final answer
    x = 113,776.87

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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.