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Finding the Fourth Proportional to 250,381.94, 375,310.47 and 92,509.70

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Solution

The fourth proportional to 250,381.94, 375,310.47 and 92,509.70 is: 138,667.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,381.94 : 375,310.47 = 92,509.70 : x
  2. Step 2: Convert to fraction form
    250,381.94/375,310.47 = 92,509.70/x
  3. Step 3: Cross multiply
    250,381.94x = 375,310.47 × 92,509.70
  4. Step 4: Simplify right side
    250,381.94x = 34,719,858,986.56
  5. Step 5: Solve for x
    x = 34,719,858,986.56/250,381.94
  6. Step 6: Final answer
    x = 138,667.59

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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.