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Finding the Fourth Proportional to 256,620.69, 354,105.64 and 141,883.83

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Solution

The fourth proportional to 256,620.69, 354,105.64 and 141,883.83 is: 195,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,620.69 : 354,105.64 = 141,883.83 : x
  2. Step 2: Convert to fraction form
    256,620.69/354,105.64 = 141,883.83/x
  3. Step 3: Cross multiply
    256,620.69x = 354,105.64 × 141,883.83
  4. Step 4: Simplify right side
    256,620.69x = 50,241,864,427.80
  5. Step 5: Solve for x
    x = 50,241,864,427.80/256,620.69
  6. Step 6: Final answer
    x = 195,782.59

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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.