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Finding the Fourth Proportional to 99,664,600.80, 149,524,894.80 and 48,548,287.20

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Solution

The fourth proportional to 99,664,600.80, 149,524,894.80 and 48,548,287.20 is: 72,836,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664,600.80 : 149,524,894.80 = 48,548,287.20 : x
  2. Step 2: Convert to fraction form
    99,664,600.80/149,524,894.80 = 48,548,287.20/x
  3. Step 3: Cross multiply
    99,664,600.80x = 149,524,894.80 × 48,548,287.20
  4. Step 4: Simplify right side
    99,664,600.80x = 7,259,177,536,300,188
  5. Step 5: Solve for x
    x = 7,259,177,536,300,188/99,664,600.80
  6. Step 6: Final answer
    x = 72,836,066.95

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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.