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Finding the Fourth Proportional to 348,161.63, 522,475.92 and 126,545.63

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Solution

The fourth proportional to 348,161.63, 522,475.92 and 126,545.63 is: 189,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,161.63 : 522,475.92 = 126,545.63 : x
  2. Step 2: Convert to fraction form
    348,161.63/522,475.92 = 126,545.63/x
  3. Step 3: Cross multiply
    348,161.63x = 522,475.92 × 126,545.63
  4. Step 4: Simplify right side
    348,161.63x = 66,117,041,843.85
  5. Step 5: Solve for x
    x = 66,117,041,843.85/348,161.63
  6. Step 6: Final answer
    x = 189,903.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.