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Finding the Fourth Proportional to 125,636.70, 173,380.32 and 68,277.15

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Solution

The fourth proportional to 125,636.70, 173,380.32 and 68,277.15 is: 94,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.70 : 173,380.32 = 68,277.15 : x
  2. Step 2: Convert to fraction form
    125,636.70/173,380.32 = 68,277.15/x
  3. Step 3: Cross multiply
    125,636.70x = 173,380.32 × 68,277.15
  4. Step 4: Simplify right side
    125,636.70x = 11,837,914,115.69
  5. Step 5: Solve for x
    x = 11,837,914,115.69/125,636.70
  6. Step 6: Final answer
    x = 94,223.38

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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.