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Finding the Fourth Proportional to 116.04, 174.07 and 39

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Solution

The fourth proportional to 116.04, 174.07 and 39 is: 58.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.04 : 174.07 = 39 : x
  2. Step 2: Convert to fraction form
    116.04/174.07 = 39/x
  3. Step 3: Cross multiply
    116.04x = 174.07 × 39
  4. Step 4: Simplify right side
    116.04x = 6,788.73
  5. Step 5: Solve for x
    x = 6,788.73/116.04
  6. Step 6: Final answer
    x = 58.50

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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.