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Finding the Fourth Proportional to 267,543,288.40, 401,314,932.60 and 190,059,190.60

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Solution

The fourth proportional to 267,543,288.40, 401,314,932.60 and 190,059,190.60 is: 285,088,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,543,288.40 : 401,314,932.60 = 190,059,190.60 : x
  2. Step 2: Convert to fraction form
    267,543,288.40/401,314,932.60 = 190,059,190.60/x
  3. Step 3: Cross multiply
    267,543,288.40x = 401,314,932.60 × 190,059,190.60
  4. Step 4: Simplify right side
    267,543,288.40x = 76,273,591,265,649,552
  5. Step 5: Solve for x
    x = 76,273,591,265,649,552/267,543,288.40
  6. Step 6: Final answer
    x = 285,088,785.90

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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.