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Finding the Fourth Proportional to 273,067.34, 409,681.66 and 140,040.79

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Solution

The fourth proportional to 273,067.34, 409,681.66 and 140,040.79 is: 210,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,067.34 : 409,681.66 = 140,040.79 : x
  2. Step 2: Convert to fraction form
    273,067.34/409,681.66 = 140,040.79/x
  3. Step 3: Cross multiply
    273,067.34x = 409,681.66 × 140,040.79
  4. Step 4: Simplify right side
    273,067.34x = 57,372,143,314.91
  5. Step 5: Solve for x
    x = 57,372,143,314.91/273,067.34
  6. Step 6: Final answer
    x = 210,102.55

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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.