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Finding the Fourth Proportional to 384.48, 576.72 and 167.93

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Solution

The fourth proportional to 384.48, 576.72 and 167.93 is: 251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.48 : 576.72 = 167.93 : x
  2. Step 2: Convert to fraction form
    384.48/576.72 = 167.93/x
  3. Step 3: Cross multiply
    384.48x = 576.72 × 167.93
  4. Step 4: Simplify right side
    384.48x = 96,845.71
  5. Step 5: Solve for x
    x = 96,845.71/384.48
  6. Step 6: Final answer
    x = 251.89

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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.