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Finding the Fourth Proportional to 236,793.60, 355,174.20 and 76,867.20

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Solution

The fourth proportional to 236,793.60, 355,174.20 and 76,867.20 is: 115,295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,793.60 : 355,174.20 = 76,867.20 : x
  2. Step 2: Convert to fraction form
    236,793.60/355,174.20 = 76,867.20/x
  3. Step 3: Cross multiply
    236,793.60x = 355,174.20 × 76,867.20
  4. Step 4: Simplify right side
    236,793.60x = 27,301,246,266.24
  5. Step 5: Solve for x
    x = 27,301,246,266.24/236,793.60
  6. Step 6: Final answer
    x = 115,295.54

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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.