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Finding the Fourth Proportional to 247,390.25, 341,399.21 and 134,213.00

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Solution

The fourth proportional to 247,390.25, 341,399.21 and 134,213.00 is: 185,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,390.25 : 341,399.21 = 134,213.00 : x
  2. Step 2: Convert to fraction form
    247,390.25/341,399.21 = 134,213.00/x
  3. Step 3: Cross multiply
    247,390.25x = 341,399.21 × 134,213.00
  4. Step 4: Simplify right side
    247,390.25x = 45,820,209,793.67
  5. Step 5: Solve for x
    x = 45,820,209,793.67/247,390.25
  6. Step 6: Final answer
    x = 185,214.29

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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.