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Finding the Fourth Proportional to 98,803.60, 148,104.60 and 48,806.80

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Solution

The fourth proportional to 98,803.60, 148,104.60 and 48,806.80 is: 73,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,803.60 : 148,104.60 = 48,806.80 : x
  2. Step 2: Convert to fraction form
    98,803.60/148,104.60 = 48,806.80/x
  3. Step 3: Cross multiply
    98,803.60x = 148,104.60 × 48,806.80
  4. Step 4: Simplify right side
    98,803.60x = 7,228,511,591.28
  5. Step 5: Solve for x
    x = 7,228,511,591.28/98,803.60
  6. Step 6: Final answer
    x = 73,160.41

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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.