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Finding the Fourth Proportional to 416.68, 624.84 and 160

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Solution

The fourth proportional to 416.68, 624.84 and 160 is: 239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.68 : 624.84 = 160 : x
  2. Step 2: Convert to fraction form
    416.68/624.84 = 160/x
  3. Step 3: Cross multiply
    416.68x = 624.84 × 160
  4. Step 4: Simplify right side
    416.68x = 99,974.40
  5. Step 5: Solve for x
    x = 99,974.40/416.68
  6. Step 6: Final answer
    x = 239.93

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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.