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Finding the Fourth Proportional to 256,667.04, 354,202.88 and 141,939.76

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Solution

The fourth proportional to 256,667.04, 354,202.88 and 141,939.76 is: 195,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,667.04 : 354,202.88 = 141,939.76 : x
  2. Step 2: Convert to fraction form
    256,667.04/354,202.88 = 141,939.76/x
  3. Step 3: Cross multiply
    256,667.04x = 354,202.88 × 141,939.76
  4. Step 4: Simplify right side
    256,667.04x = 50,275,471,778.51
  5. Step 5: Solve for x
    x = 50,275,471,778.51/256,667.04
  6. Step 6: Final answer
    x = 195,878.18

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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.