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Finding the Fourth Proportional to 352, 527.91 and 146.76

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Solution

The fourth proportional to 352, 527.91 and 146.76 is: 220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352 : 527.91 = 146.76 : x
  2. Step 2: Convert to fraction form
    352/527.91 = 146.76/x
  3. Step 3: Cross multiply
    352x = 527.91 × 146.76
  4. Step 4: Simplify right side
    352x = 77,473.43
  5. Step 5: Solve for x
    x = 77,473.43/352
  6. Step 6: Final answer
    x = 220.09

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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.