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Finding the Fourth Proportional to 256,045.59, 353,475.84 and 187,057.71

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Solution

The fourth proportional to 256,045.59, 353,475.84 and 187,057.71 is: 258,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,045.59 : 353,475.84 = 187,057.71 : x
  2. Step 2: Convert to fraction form
    256,045.59/353,475.84 = 187,057.71/x
  3. Step 3: Cross multiply
    256,045.59x = 353,475.84 × 187,057.71
  4. Step 4: Simplify right side
    256,045.59x = 66,120,381,170.73
  5. Step 5: Solve for x
    x = 66,120,381,170.73/256,045.59
  6. Step 6: Final answer
    x = 258,236.75

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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.