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Finding the Fourth Proportional to 125,456.52, 173,118.49 and 74,460.48

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Solution

The fourth proportional to 125,456.52, 173,118.49 and 74,460.48 is: 102,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,456.52 : 173,118.49 = 74,460.48 : x
  2. Step 2: Convert to fraction form
    125,456.52/173,118.49 = 74,460.48/x
  3. Step 3: Cross multiply
    125,456.52x = 173,118.49 × 74,460.48
  4. Step 4: Simplify right side
    125,456.52x = 12,890,485,862.28
  5. Step 5: Solve for x
    x = 12,890,485,862.28/125,456.52
  6. Step 6: Final answer
    x = 102,748.63

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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.