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Finding the Fourth Proportional to 416.56, 625.04 and 160

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Solution

The fourth proportional to 416.56, 625.04 and 160 is: 240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.56 : 625.04 = 160 : x
  2. Step 2: Convert to fraction form
    416.56/625.04 = 160/x
  3. Step 3: Cross multiply
    416.56x = 625.04 × 160
  4. Step 4: Simplify right side
    416.56x = 100,006.40
  5. Step 5: Solve for x
    x = 100,006.40/416.56
  6. Step 6: Final answer
    x = 240.08

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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.