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Finding the Fourth Proportional to 98,407.20, 147,610.80 and 36,069.60

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Solution

The fourth proportional to 98,407.20, 147,610.80 and 36,069.60 is: 54,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,407.20 : 147,610.80 = 36,069.60 : x
  2. Step 2: Convert to fraction form
    98,407.20/147,610.80 = 36,069.60/x
  3. Step 3: Cross multiply
    98,407.20x = 147,610.80 × 36,069.60
  4. Step 4: Simplify right side
    98,407.20x = 5,324,262,511.68
  5. Step 5: Solve for x
    x = 5,324,262,511.68/98,407.20
  6. Step 6: Final answer
    x = 54,104.40

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1.5x scale

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.