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Finding the Fourth Proportional to 98,139.92, 147,265.45 and 41,975.02

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Solution

The fourth proportional to 98,139.92, 147,265.45 and 41,975.02 is: 62,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,139.92 : 147,265.45 = 41,975.02 : x
  2. Step 2: Convert to fraction form
    98,139.92/147,265.45 = 41,975.02/x
  3. Step 3: Cross multiply
    98,139.92x = 147,265.45 × 41,975.02
  4. Step 4: Simplify right side
    98,139.92x = 6,181,469,735.96
  5. Step 5: Solve for x
    x = 6,181,469,735.96/98,139.92
  6. Step 6: Final answer
    x = 62,986.30

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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.