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Finding the Fourth Proportional to 172,999.62, 238,747.80 and 97,546.50

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Solution

The fourth proportional to 172,999.62, 238,747.80 and 97,546.50 is: 134,618.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.62 : 238,747.80 = 97,546.50 : x
  2. Step 2: Convert to fraction form
    172,999.62/238,747.80 = 97,546.50/x
  3. Step 3: Cross multiply
    172,999.62x = 238,747.80 × 97,546.50
  4. Step 4: Simplify right side
    172,999.62x = 23,289,012,272.70
  5. Step 5: Solve for x
    x = 23,289,012,272.70/172,999.62
  6. Step 6: Final answer
    x = 134,618.86

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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.