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Finding the Fourth Proportional to 116,768.48, 175,209.96 and 72,383.48

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Solution

The fourth proportional to 116,768.48, 175,209.96 and 72,383.48 is: 108,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,768.48 : 175,209.96 = 72,383.48 : x
  2. Step 2: Convert to fraction form
    116,768.48/175,209.96 = 72,383.48/x
  3. Step 3: Cross multiply
    116,768.48x = 175,209.96 × 72,383.48
  4. Step 4: Simplify right side
    116,768.48x = 12,682,306,635.46
  5. Step 5: Solve for x
    x = 12,682,306,635.46/116,768.48
  6. Step 6: Final answer
    x = 108,610.70

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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.