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Finding the Fourth Proportional to 476, 714.10 and 167.88

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Solution

The fourth proportional to 476, 714.10 and 167.88 is: 251.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    476 : 714.10 = 167.88 : x
  2. Step 2: Convert to fraction form
    476/714.10 = 167.88/x
  3. Step 3: Cross multiply
    476x = 714.10 × 167.88
  4. Step 4: Simplify right side
    476x = 119,883.11
  5. Step 5: Solve for x
    x = 119,883.11/476
  6. Step 6: Final answer
    x = 251.86

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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.