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Finding the Fourth Proportional to 98,481.20, 147,570.60 and 73,403.60

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Solution

The fourth proportional to 98,481.20, 147,570.60 and 73,403.60 is: 109,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,481.20 : 147,570.60 = 73,403.60 : x
  2. Step 2: Convert to fraction form
    98,481.20/147,570.60 = 73,403.60/x
  3. Step 3: Cross multiply
    98,481.20x = 147,570.60 × 73,403.60
  4. Step 4: Simplify right side
    98,481.20x = 10,832,213,294.16
  5. Step 5: Solve for x
    x = 10,832,213,294.16/98,481.20
  6. Step 6: Final answer
    x = 109,992.70

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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.