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Finding the Fourth Proportional to 172,481.20, 238,023.70 and 97,029.70

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Solution

The fourth proportional to 172,481.20, 238,023.70 and 97,029.70 is: 133,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,481.20 : 238,023.70 = 97,029.70 : x
  2. Step 2: Convert to fraction form
    172,481.20/238,023.70 = 97,029.70/x
  3. Step 3: Cross multiply
    172,481.20x = 238,023.70 × 97,029.70
  4. Step 4: Simplify right side
    172,481.20x = 23,095,368,203.89
  5. Step 5: Solve for x
    x = 23,095,368,203.89/172,481.20
  6. Step 6: Final answer
    x = 133,900.79

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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.