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Finding the Fourth Proportional to 183,898.20, 275,879.70 and 65,638.20

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Solution

The fourth proportional to 183,898.20, 275,879.70 and 65,638.20 is: 98,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,898.20 : 275,879.70 = 65,638.20 : x
  2. Step 2: Convert to fraction form
    183,898.20/275,879.70 = 65,638.20/x
  3. Step 3: Cross multiply
    183,898.20x = 275,879.70 × 65,638.20
  4. Step 4: Simplify right side
    183,898.20x = 18,108,246,924.54
  5. Step 5: Solve for x
    x = 18,108,246,924.54/183,898.20
  6. Step 6: Final answer
    x = 98,468.86

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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.