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Finding the Fourth Proportional to 202,135.70, 303,453.15 and 127,255.70

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Solution

The fourth proportional to 202,135.70, 303,453.15 and 127,255.70 is: 191,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,135.70 : 303,453.15 = 127,255.70 : x
  2. Step 2: Convert to fraction form
    202,135.70/303,453.15 = 127,255.70/x
  3. Step 3: Cross multiply
    202,135.70x = 303,453.15 × 127,255.70
  4. Step 4: Simplify right side
    202,135.70x = 38,616,143,020.46
  5. Step 5: Solve for x
    x = 38,616,143,020.46/202,135.70
  6. Step 6: Final answer
    x = 191,040.69

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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.