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Finding the Fourth Proportional to 66,764,279.70, 100,146,419.55 and 50,395,896.90

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Solution

The fourth proportional to 66,764,279.70, 100,146,419.55 and 50,395,896.90 is: 75,593,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,764,279.70 : 100,146,419.55 = 50,395,896.90 : x
  2. Step 2: Convert to fraction form
    66,764,279.70/100,146,419.55 = 50,395,896.90/x
  3. Step 3: Cross multiply
    66,764,279.70x = 100,146,419.55 × 50,395,896.90
  4. Step 4: Simplify right side
    66,764,279.70x = 5,046,968,634,545,944
  5. Step 5: Solve for x
    x = 5,046,968,634,545,944/66,764,279.70
  6. Step 6: Final answer
    x = 75,593,845.35

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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.