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Finding the Fourth Proportional to 256,946.59, 354,500.17 and 149,493.61

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Solution

The fourth proportional to 256,946.59, 354,500.17 and 149,493.61 is: 206,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,946.59 : 354,500.17 = 149,493.61 : x
  2. Step 2: Convert to fraction form
    256,946.59/354,500.17 = 149,493.61/x
  3. Step 3: Cross multiply
    256,946.59x = 354,500.17 × 149,493.61
  4. Step 4: Simplify right side
    256,946.59x = 52,995,510,158.91
  5. Step 5: Solve for x
    x = 52,995,510,158.91/256,946.59
  6. Step 6: Final answer
    x = 206,251.07

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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.