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Finding the Fourth Proportional to 361,631.86, 499,063.80 and 200,501.90

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Solution

The fourth proportional to 361,631.86, 499,063.80 and 200,501.90 is: 276,699.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,631.86 : 499,063.80 = 200,501.90 : x
  2. Step 2: Convert to fraction form
    361,631.86/499,063.80 = 200,501.90/x
  3. Step 3: Cross multiply
    361,631.86x = 499,063.80 × 200,501.90
  4. Step 4: Simplify right side
    361,631.86x = 100,063,240,121.22
  5. Step 5: Solve for x
    x = 100,063,240,121.22/361,631.86
  6. Step 6: Final answer
    x = 276,699.18

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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.