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Finding the Fourth Proportional to 256,073.72, 353,381.80 and 141,352.43

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Solution

The fourth proportional to 256,073.72, 353,381.80 and 141,352.43 is: 195,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,073.72 : 353,381.80 = 141,352.43 : x
  2. Step 2: Convert to fraction form
    256,073.72/353,381.80 = 141,352.43/x
  3. Step 3: Cross multiply
    256,073.72x = 353,381.80 × 141,352.43
  4. Step 4: Simplify right side
    256,073.72x = 49,951,377,671.73
  5. Step 5: Solve for x
    x = 49,951,377,671.73/256,073.72
  6. Step 6: Final answer
    x = 195,066.40

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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.