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Finding the Fourth Proportional to 256,481.52, 353,913.96 and 141,753.12

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Solution

The fourth proportional to 256,481.52, 353,913.96 and 141,753.12 is: 195,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,481.52 : 353,913.96 = 141,753.12 : x
  2. Step 2: Convert to fraction form
    256,481.52/353,913.96 = 141,753.12/x
  3. Step 3: Cross multiply
    256,481.52x = 353,913.96 × 141,753.12
  4. Step 4: Simplify right side
    256,481.52x = 50,168,408,041.56
  5. Step 5: Solve for x
    x = 50,168,408,041.56/256,481.52
  6. Step 6: Final answer
    x = 195,602.43

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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.