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Finding the Fourth Proportional to 133,469,715.20, 200,204,572.80 and 104,804,268.80

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Solution

The fourth proportional to 133,469,715.20, 200,204,572.80 and 104,804,268.80 is: 157,206,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,469,715.20 : 200,204,572.80 = 104,804,268.80 : x
  2. Step 2: Convert to fraction form
    133,469,715.20/200,204,572.80 = 104,804,268.80/x
  3. Step 3: Cross multiply
    133,469,715.20x = 200,204,572.80 × 104,804,268.80
  4. Step 4: Simplify right side
    133,469,715.20x = 20,982,293,862,720,368
  5. Step 5: Solve for x
    x = 20,982,293,862,720,368/133,469,715.20
  6. Step 6: Final answer
    x = 157,206,403.20

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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.