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Finding the Fourth Proportional to 174.32, 261.49 and 46.07

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Solution

The fourth proportional to 174.32, 261.49 and 46.07 is: 69.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.32 : 261.49 = 46.07 : x
  2. Step 2: Convert to fraction form
    174.32/261.49 = 46.07/x
  3. Step 3: Cross multiply
    174.32x = 261.49 × 46.07
  4. Step 4: Simplify right side
    174.32x = 12,045.31
  5. Step 5: Solve for x
    x = 12,045.31/174.32
  6. Step 6: Final answer
    x = 69.10

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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.