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Finding the Fourth Proportional to 247,760.35, 341,933.21 and 138,883.12

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Solution

The fourth proportional to 247,760.35, 341,933.21 and 138,883.12 is: 191,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,760.35 : 341,933.21 = 138,883.12 : x
  2. Step 2: Convert to fraction form
    247,760.35/341,933.21 = 138,883.12/x
  3. Step 3: Cross multiply
    247,760.35x = 341,933.21 × 138,883.12
  4. Step 4: Simplify right side
    247,760.35x = 47,488,750,007.98
  5. Step 5: Solve for x
    x = 47,488,750,007.98/247,760.35
  6. Step 6: Final answer
    x = 191,672.12

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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.