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Finding the Fourth Proportional to 357.92, 537 and 165.56

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Solution

The fourth proportional to 357.92, 537 and 165.56 is: 248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.92 : 537 = 165.56 : x
  2. Step 2: Convert to fraction form
    357.92/537 = 165.56/x
  3. Step 3: Cross multiply
    357.92x = 537 × 165.56
  4. Step 4: Simplify right side
    357.92x = 88,905.72
  5. Step 5: Solve for x
    x = 88,905.72/357.92
  6. Step 6: Final answer
    x = 248.40

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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.