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Finding the Fourth Proportional to 167,861.25, 251,767.02 and 61,220.20

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Solution

The fourth proportional to 167,861.25, 251,767.02 and 61,220.20 is: 91,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,861.25 : 251,767.02 = 61,220.20 : x
  2. Step 2: Convert to fraction form
    167,861.25/251,767.02 = 61,220.20/x
  3. Step 3: Cross multiply
    167,861.25x = 251,767.02 × 61,220.20
  4. Step 4: Simplify right side
    167,861.25x = 15,413,225,752.87
  5. Step 5: Solve for x
    x = 15,413,225,752.87/167,861.25
  6. Step 6: Final answer
    x = 91,821.23

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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.