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Finding the Fourth Proportional to 125,397.48, 173,043.30 and 68,805.24

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Solution

The fourth proportional to 125,397.48, 173,043.30 and 68,805.24 is: 94,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,397.48 : 173,043.30 = 68,805.24 : x
  2. Step 2: Convert to fraction form
    125,397.48/173,043.30 = 68,805.24/x
  3. Step 3: Cross multiply
    125,397.48x = 173,043.30 × 68,805.24
  4. Step 4: Simplify right side
    125,397.48x = 11,906,285,786.89
  5. Step 5: Solve for x
    x = 11,906,285,786.89/125,397.48
  6. Step 6: Final answer
    x = 94,948.37

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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.