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Finding the Fourth Proportional to 54,648.84, 82,007.22 and 49,390.20

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Solution

The fourth proportional to 54,648.84, 82,007.22 and 49,390.20 is: 74,115.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,648.84 : 82,007.22 = 49,390.20 : x
  2. Step 2: Convert to fraction form
    54,648.84/82,007.22 = 49,390.20/x
  3. Step 3: Cross multiply
    54,648.84x = 82,007.22 × 49,390.20
  4. Step 4: Simplify right side
    54,648.84x = 4,050,352,997.24
  5. Step 5: Solve for x
    x = 4,050,352,997.24/54,648.84
  6. Step 6: Final answer
    x = 74,115.99

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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.