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Finding the Fourth Proportional to 376, 564 and 148.16

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Solution

The fourth proportional to 376, 564 and 148.16 is: 222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    376 : 564 = 148.16 : x
  2. Step 2: Convert to fraction form
    376/564 = 148.16/x
  3. Step 3: Cross multiply
    376x = 564 × 148.16
  4. Step 4: Simplify right side
    376x = 83,562.24
  5. Step 5: Solve for x
    x = 83,562.24/376
  6. Step 6: Final answer
    x = 222.24

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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.