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Finding the Fourth Proportional to 368,468.83, 551,559.12 and 199,569.66

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Solution

The fourth proportional to 368,468.83, 551,559.12 and 199,569.66 is: 298,734.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,468.83 : 551,559.12 = 199,569.66 : x
  2. Step 2: Convert to fraction form
    368,468.83/551,559.12 = 199,569.66/x
  3. Step 3: Cross multiply
    368,468.83x = 551,559.12 × 199,569.66
  4. Step 4: Simplify right side
    368,468.83x = 110,074,466,048.30
  5. Step 5: Solve for x
    x = 110,074,466,048.30/368,468.83
  6. Step 6: Final answer
    x = 298,734.81

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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.