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Finding the Fourth Proportional to 256,575.40, 354,063.61 and 141,846.74

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Solution

The fourth proportional to 256,575.40, 354,063.61 and 141,846.74 is: 195,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,575.40 : 354,063.61 = 141,846.74 : x
  2. Step 2: Convert to fraction form
    256,575.40/354,063.61 = 141,846.74/x
  3. Step 3: Cross multiply
    256,575.40x = 354,063.61 × 141,846.74
  4. Step 4: Simplify right side
    256,575.40x = 50,222,769,759.58
  5. Step 5: Solve for x
    x = 50,222,769,759.58/256,575.40
  6. Step 6: Final answer
    x = 195,742.73

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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.