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Finding the Fourth Proportional to 437,190.77, 655,809.44 and 137,694.75

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Solution

The fourth proportional to 437,190.77, 655,809.44 and 137,694.75 is: 206,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,190.77 : 655,809.44 = 137,694.75 : x
  2. Step 2: Convert to fraction form
    437,190.77/655,809.44 = 137,694.75/x
  3. Step 3: Cross multiply
    437,190.77x = 655,809.44 × 137,694.75
  4. Step 4: Simplify right side
    437,190.77x = 90,301,516,199.97
  5. Step 5: Solve for x
    x = 90,301,516,199.97/437,190.77
  6. Step 6: Final answer
    x = 206,549.46

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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.