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Finding the Fourth Proportional to 172,999.67, 238,648.89 and 150,287.67

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Solution

The fourth proportional to 172,999.67, 238,648.89 and 150,287.67 is: 207,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.67 : 238,648.89 = 150,287.67 : x
  2. Step 2: Convert to fraction form
    172,999.67/238,648.89 = 150,287.67/x
  3. Step 3: Cross multiply
    172,999.67x = 238,648.89 × 150,287.67
  4. Step 4: Simplify right side
    172,999.67x = 35,865,985,626.19
  5. Step 5: Solve for x
    x = 35,865,985,626.19/172,999.67
  6. Step 6: Final answer
    x = 207,318.23

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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.