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Finding the Fourth Proportional to 67,372,617.60, 100,869,969.60 and 65,483,049.60

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Solution

The fourth proportional to 67,372,617.60, 100,869,969.60 and 65,483,049.60 is: 98,040,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,372,617.60 : 100,869,969.60 = 65,483,049.60 : x
  2. Step 2: Convert to fraction form
    67,372,617.60/100,869,969.60 = 65,483,049.60/x
  3. Step 3: Cross multiply
    67,372,617.60x = 100,869,969.60 × 65,483,049.60
  4. Step 4: Simplify right side
    67,372,617.60x = 6,605,273,222,467,292
  5. Step 5: Solve for x
    x = 6,605,273,222,467,292/67,372,617.60
  6. Step 6: Final answer
    x = 98,040,917.18

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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.