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Finding the Fourth Proportional to 125,410.88, 173,068.96 and 68,821.44

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Solution

The fourth proportional to 125,410.88, 173,068.96 and 68,821.44 is: 94,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,410.88 : 173,068.96 = 68,821.44 : x
  2. Step 2: Convert to fraction form
    125,410.88/173,068.96 = 68,821.44/x
  3. Step 3: Cross multiply
    125,410.88x = 173,068.96 × 68,821.44
  4. Step 4: Simplify right side
    125,410.88x = 11,910,855,046.50
  5. Step 5: Solve for x
    x = 11,910,855,046.50/125,410.88
  6. Step 6: Final answer
    x = 94,974.65

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1.5x scale

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.