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Finding the Fourth Proportional to 368.66, 552.90 and 152.24

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Solution

The fourth proportional to 368.66, 552.90 and 152.24 is: 228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.66 : 552.90 = 152.24 : x
  2. Step 2: Convert to fraction form
    368.66/552.90 = 152.24/x
  3. Step 3: Cross multiply
    368.66x = 552.90 × 152.24
  4. Step 4: Simplify right side
    368.66x = 84,173.50
  5. Step 5: Solve for x
    x = 84,173.50/368.66
  6. Step 6: Final answer
    x = 228.32

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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.