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Finding the Fourth Proportional to 96,806.80, 145,210.20 and 63,629.20

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Solution

The fourth proportional to 96,806.80, 145,210.20 and 63,629.20 is: 95,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,806.80 : 145,210.20 = 63,629.20 : x
  2. Step 2: Convert to fraction form
    96,806.80/145,210.20 = 63,629.20/x
  3. Step 3: Cross multiply
    96,806.80x = 145,210.20 × 63,629.20
  4. Step 4: Simplify right side
    96,806.80x = 9,239,608,857.84
  5. Step 5: Solve for x
    x = 9,239,608,857.84/96,806.80
  6. Step 6: Final answer
    x = 95,443.80

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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.