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Finding the Fourth Proportional to 202.74, 304.11 and 58.46

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Solution

The fourth proportional to 202.74, 304.11 and 58.46 is: 87.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.74 : 304.11 = 58.46 : x
  2. Step 2: Convert to fraction form
    202.74/304.11 = 58.46/x
  3. Step 3: Cross multiply
    202.74x = 304.11 × 58.46
  4. Step 4: Simplify right side
    202.74x = 17,776.75
  5. Step 5: Solve for x
    x = 17,776.75/202.74
  6. Step 6: Final answer
    x = 87.68

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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.