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Finding the Fourth Proportional to 116.64, 174.07 and 111.93

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Solution

The fourth proportional to 116.64, 174.07 and 111.93 is: 167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.64 : 174.07 = 111.93 : x
  2. Step 2: Convert to fraction form
    116.64/174.07 = 111.93/x
  3. Step 3: Cross multiply
    116.64x = 174.07 × 111.93
  4. Step 4: Simplify right side
    116.64x = 19,482.23
  5. Step 5: Solve for x
    x = 19,482.23/116.64
  6. Step 6: Final answer
    x = 167.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.