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Finding the Fourth Proportional to 229,960.67, 344,996.54 and 72,189.12

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Solution

The fourth proportional to 229,960.67, 344,996.54 and 72,189.12 is: 108,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,960.67 : 344,996.54 = 72,189.12 : x
  2. Step 2: Convert to fraction form
    229,960.67/344,996.54 = 72,189.12/x
  3. Step 3: Cross multiply
    229,960.67x = 344,996.54 × 72,189.12
  4. Step 4: Simplify right side
    229,960.67x = 24,904,996,264.70
  5. Step 5: Solve for x
    x = 24,904,996,264.70/229,960.67
  6. Step 6: Final answer
    x = 108,301.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.