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Finding the Fourth Proportional to 361,805.06, 499,307.65 and 200,650.51

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Solution

The fourth proportional to 361,805.06, 499,307.65 and 200,650.51 is: 276,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,805.06 : 499,307.65 = 200,650.51 : x
  2. Step 2: Convert to fraction form
    361,805.06/499,307.65 = 200,650.51/x
  3. Step 3: Cross multiply
    361,805.06x = 499,307.65 × 200,650.51
  4. Step 4: Simplify right side
    361,805.06x = 100,186,334,619.40
  5. Step 5: Solve for x
    x = 100,186,334,619.40/361,805.06
  6. Step 6: Final answer
    x = 276,906.95

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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.