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Finding the Fourth Proportional to 124,819.22, 172,250.62 and 68,230.64

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Solution

The fourth proportional to 124,819.22, 172,250.62 and 68,230.64 is: 94,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,819.22 : 172,250.62 = 68,230.64 : x
  2. Step 2: Convert to fraction form
    124,819.22/172,250.62 = 68,230.64/x
  3. Step 3: Cross multiply
    124,819.22x = 172,250.62 × 68,230.64
  4. Step 4: Simplify right side
    124,819.22x = 11,752,770,043.00
  5. Step 5: Solve for x
    x = 11,752,770,043.00/124,819.22
  6. Step 6: Final answer
    x = 94,158.34

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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.