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Finding the Fourth Proportional to 149,740.46, 223,640.46 and 135,672.38

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Solution

The fourth proportional to 149,740.46, 223,640.46 and 135,672.38 is: 202,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,740.46 : 223,640.46 = 135,672.38 : x
  2. Step 2: Convert to fraction form
    149,740.46/223,640.46 = 135,672.38/x
  3. Step 3: Cross multiply
    149,740.46x = 223,640.46 × 135,672.38
  4. Step 4: Simplify right side
    149,740.46x = 30,341,833,472.49
  5. Step 5: Solve for x
    x = 30,341,833,472.49/149,740.46
  6. Step 6: Final answer
    x = 202,629.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.