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Finding the Fourth Proportional to 66,465,334.04, 91,722,287.90 and 36,696,039.68

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Solution

The fourth proportional to 66,465,334.04, 91,722,287.90 and 36,696,039.68 is: 50,640,604.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465,334.04 : 91,722,287.90 = 36,696,039.68 : x
  2. Step 2: Convert to fraction form
    66,465,334.04/91,722,287.90 = 36,696,039.68/x
  3. Step 3: Cross multiply
    66,465,334.04x = 91,722,287.90 × 36,696,039.68
  4. Step 4: Simplify right side
    66,465,334.04x = 3,365,844,716,318,784
  5. Step 5: Solve for x
    x = 3,365,844,716,318,784/66,465,334.04
  6. Step 6: Final answer
    x = 50,640,604.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.