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Finding the Fourth Proportional to 66,735,086.40, 99,906,674.40 and 49,770,964.80

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Solution

The fourth proportional to 66,735,086.40, 99,906,674.40 and 49,770,964.80 is: 74,510,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,735,086.40 : 99,906,674.40 = 49,770,964.80 : x
  2. Step 2: Convert to fraction form
    66,735,086.40/99,906,674.40 = 49,770,964.80/x
  3. Step 3: Cross multiply
    66,735,086.40x = 99,906,674.40 × 49,770,964.80
  4. Step 4: Simplify right side
    66,735,086.40x = 4,972,451,574,847,461
  5. Step 5: Solve for x
    x = 4,972,451,574,847,461/66,735,086.40
  6. Step 6: Final answer
    x = 74,510,304.00

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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.