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Finding the Fourth Proportional to 250,216.38, 345,299.31 and 135,496.38

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Solution

The fourth proportional to 250,216.38, 345,299.31 and 135,496.38 is: 186,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,216.38 : 345,299.31 = 135,496.38 : x
  2. Step 2: Convert to fraction form
    250,216.38/345,299.31 = 135,496.38/x
  3. Step 3: Cross multiply
    250,216.38x = 345,299.31 × 135,496.38
  4. Step 4: Simplify right side
    250,216.38x = 46,786,806,521.50
  5. Step 5: Solve for x
    x = 46,786,806,521.50/250,216.38
  6. Step 6: Final answer
    x = 186,985.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.