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Finding the Fourth Proportional to 98,998.20, 148,410.90 and 88,500.60

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Solution

The fourth proportional to 98,998.20, 148,410.90 and 88,500.60 is: 132,673.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,998.20 : 148,410.90 = 88,500.60 : x
  2. Step 2: Convert to fraction form
    98,998.20/148,410.90 = 88,500.60/x
  3. Step 3: Cross multiply
    98,998.20x = 148,410.90 × 88,500.60
  4. Step 4: Simplify right side
    98,998.20x = 13,134,453,696.54
  5. Step 5: Solve for x
    x = 13,134,453,696.54/98,998.20
  6. Step 6: Final answer
    x = 132,673.66

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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.