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Finding the Fourth Proportional to 125,512, 173,206.56 and 68,924.32

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Solution

The fourth proportional to 125,512, 173,206.56 and 68,924.32 is: 95,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,512 : 173,206.56 = 68,924.32 : x
  2. Step 2: Convert to fraction form
    125,512/173,206.56 = 68,924.32/x
  3. Step 3: Cross multiply
    125,512x = 173,206.56 × 68,924.32
  4. Step 4: Simplify right side
    125,512x = 11,938,144,367.54
  5. Step 5: Solve for x
    x = 11,938,144,367.54/125,512
  6. Step 6: Final answer
    x = 95,115.56

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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.