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Finding the Fourth Proportional to 367,322.78, 550,732.62 and 187,059.28

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Solution

The fourth proportional to 367,322.78, 550,732.62 and 187,059.28 is: 280,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,322.78 : 550,732.62 = 187,059.28 : x
  2. Step 2: Convert to fraction form
    367,322.78/550,732.62 = 187,059.28/x
  3. Step 3: Cross multiply
    367,322.78x = 550,732.62 × 187,059.28
  4. Step 4: Simplify right side
    367,322.78x = 103,019,647,369.71
  5. Step 5: Solve for x
    x = 103,019,647,369.71/367,322.78
  6. Step 6: Final answer
    x = 280,460.82

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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.