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Finding the Fourth Proportional to 125,588.88, 173,308.32 and 68,996.88

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Solution

The fourth proportional to 125,588.88, 173,308.32 and 68,996.88 is: 95,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,588.88 : 173,308.32 = 68,996.88 : x
  2. Step 2: Convert to fraction form
    125,588.88/173,308.32 = 68,996.88/x
  3. Step 3: Cross multiply
    125,588.88x = 173,308.32 × 68,996.88
  4. Step 4: Simplify right side
    125,588.88x = 11,957,733,358.04
  5. Step 5: Solve for x
    x = 11,957,733,358.04/125,588.88
  6. Step 6: Final answer
    x = 95,213.31

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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.