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Finding the Fourth Proportional to 125,756.57, 173,544.79 and 68,396.57

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Solution

The fourth proportional to 125,756.57, 173,544.79 and 68,396.57 is: 94,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,756.57 : 173,544.79 = 68,396.57 : x
  2. Step 2: Convert to fraction form
    125,756.57/173,544.79 = 68,396.57/x
  3. Step 3: Cross multiply
    125,756.57x = 173,544.79 × 68,396.57
  4. Step 4: Simplify right side
    125,756.57x = 11,869,868,377.37
  5. Step 5: Solve for x
    x = 11,869,868,377.37/125,756.57
  6. Step 6: Final answer
    x = 94,387.66

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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.