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Finding the Fourth Proportional to 256,667.05, 354,202.77 and 141,939.73

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Solution

The fourth proportional to 256,667.05, 354,202.77 and 141,939.73 is: 195,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,667.05 : 354,202.77 = 141,939.73 : x
  2. Step 2: Convert to fraction form
    256,667.05/354,202.77 = 141,939.73/x
  3. Step 3: Cross multiply
    256,667.05x = 354,202.77 × 141,939.73
  4. Step 4: Simplify right side
    256,667.05x = 50,275,445,539.05
  5. Step 5: Solve for x
    x = 50,275,445,539.05/256,667.05
  6. Step 6: Final answer
    x = 195,878.07

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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.