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Finding the Fourth Proportional to 95,957.20, 143,806.20 and 84,811.60

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Solution

The fourth proportional to 95,957.20, 143,806.20 and 84,811.60 is: 127,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,957.20 : 143,806.20 = 84,811.60 : x
  2. Step 2: Convert to fraction form
    95,957.20/143,806.20 = 84,811.60/x
  3. Step 3: Cross multiply
    95,957.20x = 143,806.20 × 84,811.60
  4. Step 4: Simplify right side
    95,957.20x = 12,196,433,911.92
  5. Step 5: Solve for x
    x = 12,196,433,911.92/95,957.20
  6. Step 6: Final answer
    x = 127,102.85

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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.