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Finding the Fourth Proportional to 368,143.20, 552,214.80 and 181,519.20

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Solution

The fourth proportional to 368,143.20, 552,214.80 and 181,519.20 is: 272,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,143.20 : 552,214.80 = 181,519.20 : x
  2. Step 2: Convert to fraction form
    368,143.20/552,214.80 = 181,519.20/x
  3. Step 3: Cross multiply
    368,143.20x = 552,214.80 × 181,519.20
  4. Step 4: Simplify right side
    368,143.20x = 100,237,588,724.16
  5. Step 5: Solve for x
    x = 100,237,588,724.16/368,143.20
  6. Step 6: Final answer
    x = 272,278.80

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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.