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Finding the Fourth Proportional to 98,830.80, 148,246.20 and 48,891.60

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Solution

The fourth proportional to 98,830.80, 148,246.20 and 48,891.60 is: 73,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,830.80 : 148,246.20 = 48,891.60 : x
  2. Step 2: Convert to fraction form
    98,830.80/148,246.20 = 48,891.60/x
  3. Step 3: Cross multiply
    98,830.80x = 148,246.20 × 48,891.60
  4. Step 4: Simplify right side
    98,830.80x = 7,247,993,911.92
  5. Step 5: Solve for x
    x = 7,247,993,911.92/98,830.80
  6. Step 6: Final answer
    x = 73,337.40

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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.