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Finding the Fourth Proportional to 412,267.46, 618,007.52 and 131,602.46

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Solution

The fourth proportional to 412,267.46, 618,007.52 and 131,602.46 is: 197,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,267.46 : 618,007.52 = 131,602.46 : x
  2. Step 2: Convert to fraction form
    412,267.46/618,007.52 = 131,602.46/x
  3. Step 3: Cross multiply
    412,267.46x = 618,007.52 × 131,602.46
  4. Step 4: Simplify right side
    412,267.46x = 81,331,307,169.47
  5. Step 5: Solve for x
    x = 81,331,307,169.47/412,267.46
  6. Step 6: Final answer
    x = 197,278.02

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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.