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Finding the Fourth Proportional to 167.47, 251.25 and 99.06

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Solution

The fourth proportional to 167.47, 251.25 and 99.06 is: 148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.47 : 251.25 = 99.06 : x
  2. Step 2: Convert to fraction form
    167.47/251.25 = 99.06/x
  3. Step 3: Cross multiply
    167.47x = 251.25 × 99.06
  4. Step 4: Simplify right side
    167.47x = 24,888.83
  5. Step 5: Solve for x
    x = 24,888.83/167.47
  6. Step 6: Final answer
    x = 148.62

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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.