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Finding the Fourth Proportional to 98,604.60, 147,906.90 and 48,708.60

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Solution

The fourth proportional to 98,604.60, 147,906.90 and 48,708.60 is: 73,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,604.60 : 147,906.90 = 48,708.60 : x
  2. Step 2: Convert to fraction form
    98,604.60/147,906.90 = 48,708.60/x
  3. Step 3: Cross multiply
    98,604.60x = 147,906.90 × 48,708.60
  4. Step 4: Simplify right side
    98,604.60x = 7,204,338,029.34
  5. Step 5: Solve for x
    x = 7,204,338,029.34/98,604.60
  6. Step 6: Final answer
    x = 73,062.90

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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.