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Finding the Fourth Proportional to 116.43, 174.53 and 58.70

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Solution

The fourth proportional to 116.43, 174.53 and 58.70 is: 87.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.43 : 174.53 = 58.70 : x
  2. Step 2: Convert to fraction form
    116.43/174.53 = 58.70/x
  3. Step 3: Cross multiply
    116.43x = 174.53 × 58.70
  4. Step 4: Simplify right side
    116.43x = 10,243.74
  5. Step 5: Solve for x
    x = 10,243.74/116.43
  6. Step 6: Final answer
    x = 87.98

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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.