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Finding the Fourth Proportional to 125,503.88, 173,196.56 and 68,916.47

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Solution

The fourth proportional to 125,503.88, 173,196.56 and 68,916.47 is: 95,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,503.88 : 173,196.56 = 68,916.47 : x
  2. Step 2: Convert to fraction form
    125,503.88/173,196.56 = 68,916.47/x
  3. Step 3: Cross multiply
    125,503.88x = 173,196.56 × 68,916.47
  4. Step 4: Simplify right side
    125,503.88x = 11,936,094,837.65
  5. Step 5: Solve for x
    x = 11,936,094,837.65/125,503.88
  6. Step 6: Final answer
    x = 95,105.39

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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.