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Finding the Fourth Proportional to 98,140.20, 147,059.10 and 73,062.60

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Solution

The fourth proportional to 98,140.20, 147,059.10 and 73,062.60 is: 109,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,140.20 : 147,059.10 = 73,062.60 : x
  2. Step 2: Convert to fraction form
    98,140.20/147,059.10 = 73,062.60/x
  3. Step 3: Cross multiply
    98,140.20x = 147,059.10 × 73,062.60
  4. Step 4: Simplify right side
    98,140.20x = 10,744,520,199.66
  5. Step 5: Solve for x
    x = 10,744,520,199.66/98,140.20
  6. Step 6: Final answer
    x = 109,481.34

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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.