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Finding the Fourth Proportional to 107, 160.32 and 46

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Solution

The fourth proportional to 107, 160.32 and 46 is: 68.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107 : 160.32 = 46 : x
  2. Step 2: Convert to fraction form
    107/160.32 = 46/x
  3. Step 3: Cross multiply
    107x = 160.32 × 46
  4. Step 4: Simplify right side
    107x = 7,374.72
  5. Step 5: Solve for x
    x = 7,374.72/107
  6. Step 6: Final answer
    x = 68.92

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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.