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Finding the Fourth Proportional to 208,230.80, 312,346.20 and 95,910.80

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Solution

The fourth proportional to 208,230.80, 312,346.20 and 95,910.80 is: 143,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,230.80 : 312,346.20 = 95,910.80 : x
  2. Step 2: Convert to fraction form
    208,230.80/312,346.20 = 95,910.80/x
  3. Step 3: Cross multiply
    208,230.80x = 312,346.20 × 95,910.80
  4. Step 4: Simplify right side
    208,230.80x = 29,957,373,918.96
  5. Step 5: Solve for x
    x = 29,957,373,918.96/208,230.80
  6. Step 6: Final answer
    x = 143,866.20

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1.5x scale

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.