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Finding the Fourth Proportional to 256,371.26, 353,790.23 and 141,649.54

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Solution

The fourth proportional to 256,371.26, 353,790.23 and 141,649.54 is: 195,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,371.26 : 353,790.23 = 141,649.54 : x
  2. Step 2: Convert to fraction form
    256,371.26/353,790.23 = 141,649.54/x
  3. Step 3: Cross multiply
    256,371.26x = 353,790.23 × 141,649.54
  4. Step 4: Simplify right side
    256,371.26x = 50,114,221,743.27
  5. Step 5: Solve for x
    x = 50,114,221,743.27/256,371.26
  6. Step 6: Final answer
    x = 195,475.20

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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.