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Finding the Fourth Proportional to 99,664,594.80, 149,524,885.80 and 48,548,281.20

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Solution

The fourth proportional to 99,664,594.80, 149,524,885.80 and 48,548,281.20 is: 72,836,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664,594.80 : 149,524,885.80 = 48,548,281.20 : x
  2. Step 2: Convert to fraction form
    99,664,594.80/149,524,885.80 = 48,548,281.20/x
  3. Step 3: Cross multiply
    99,664,594.80x = 149,524,885.80 × 48,548,281.20
  4. Step 4: Simplify right side
    99,664,594.80x = 7,259,176,202,216,288
  5. Step 5: Solve for x
    x = 7,259,176,202,216,288/99,664,594.80
  6. Step 6: Final answer
    x = 72,836,057.95

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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.