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Finding the Fourth Proportional to 167.60, 251.45 and 57.93

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Solution

The fourth proportional to 167.60, 251.45 and 57.93 is: 86.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.60 : 251.45 = 57.93 : x
  2. Step 2: Convert to fraction form
    167.60/251.45 = 57.93/x
  3. Step 3: Cross multiply
    167.60x = 251.45 × 57.93
  4. Step 4: Simplify right side
    167.60x = 14,566.50
  5. Step 5: Solve for x
    x = 14,566.50/167.60
  6. Step 6: Final answer
    x = 86.91

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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.