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Finding the Fourth Proportional to 116.84, 174.98 and 62.70

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Solution

The fourth proportional to 116.84, 174.98 and 62.70 is: 93.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.84 : 174.98 = 62.70 : x
  2. Step 2: Convert to fraction form
    116.84/174.98 = 62.70/x
  3. Step 3: Cross multiply
    116.84x = 174.98 × 62.70
  4. Step 4: Simplify right side
    116.84x = 10,971.25
  5. Step 5: Solve for x
    x = 10,971.25/116.84
  6. Step 6: Final answer
    x = 93.90

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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.