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Finding the Fourth Proportional to 172,481.56, 238,057.40 and 97,030.06

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Solution

The fourth proportional to 172,481.56, 238,057.40 and 97,030.06 is: 133,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,481.56 : 238,057.40 = 97,030.06 : x
  2. Step 2: Convert to fraction form
    172,481.56/238,057.40 = 97,030.06/x
  3. Step 3: Cross multiply
    172,481.56x = 238,057.40 × 97,030.06
  4. Step 4: Simplify right side
    172,481.56x = 23,098,723,805.44
  5. Step 5: Solve for x
    x = 23,098,723,805.44/172,481.56
  6. Step 6: Final answer
    x = 133,919.96

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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.