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Finding the Fourth Proportional to 368, 552 and 124.52

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Solution

The fourth proportional to 368, 552 and 124.52 is: 186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368 : 552 = 124.52 : x
  2. Step 2: Convert to fraction form
    368/552 = 124.52/x
  3. Step 3: Cross multiply
    368x = 552 × 124.52
  4. Step 4: Simplify right side
    368x = 68,735.04
  5. Step 5: Solve for x
    x = 68,735.04/368
  6. Step 6: Final answer
    x = 186.78

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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.