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Finding the Fourth Proportional to 296.64, 445.16 and 114.08

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Solution

The fourth proportional to 296.64, 445.16 and 114.08 is: 171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.64 : 445.16 = 114.08 : x
  2. Step 2: Convert to fraction form
    296.64/445.16 = 114.08/x
  3. Step 3: Cross multiply
    296.64x = 445.16 × 114.08
  4. Step 4: Simplify right side
    296.64x = 50,783.85
  5. Step 5: Solve for x
    x = 50,783.85/296.64
  6. Step 6: Final answer
    x = 171.20

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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.