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Finding the Fourth Proportional to 335,720.71, 503,581.07 and 136,003.87

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Solution

The fourth proportional to 335,720.71, 503,581.07 and 136,003.87 is: 204,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,720.71 : 503,581.07 = 136,003.87 : x
  2. Step 2: Convert to fraction form
    335,720.71/503,581.07 = 136,003.87/x
  3. Step 3: Cross multiply
    335,720.71x = 503,581.07 × 136,003.87
  4. Step 4: Simplify right side
    335,720.71x = 68,488,974,378.74
  5. Step 5: Solve for x
    x = 68,488,974,378.74/335,720.71
  6. Step 6: Final answer
    x = 204,005.81

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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.