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Finding the Fourth Proportional to 225,883.95, 338,657.37 and 135,905.57

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Solution

The fourth proportional to 225,883.95, 338,657.37 and 135,905.57 is: 203,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,883.95 : 338,657.37 = 135,905.57 : x
  2. Step 2: Convert to fraction form
    225,883.95/338,657.37 = 135,905.57/x
  3. Step 3: Cross multiply
    225,883.95x = 338,657.37 × 135,905.57
  4. Step 4: Simplify right side
    225,883.95x = 46,025,422,904.55
  5. Step 5: Solve for x
    x = 46,025,422,904.55/225,883.95
  6. Step 6: Final answer
    x = 203,756.95

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1.5x scale

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.