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Finding the Fourth Proportional to 116.51, 160.61 and 96.59

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Solution

The fourth proportional to 116.51, 160.61 and 96.59 is: 133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.51 : 160.61 = 96.59 : x
  2. Step 2: Convert to fraction form
    116.51/160.61 = 96.59/x
  3. Step 3: Cross multiply
    116.51x = 160.61 × 96.59
  4. Step 4: Simplify right side
    116.51x = 15,513.24
  5. Step 5: Solve for x
    x = 15,513.24/116.51
  6. Step 6: Final answer
    x = 133.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.