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Finding the Fourth Proportional to 89,807.90, 123,934.13 and 49,523.36

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Solution

The fourth proportional to 89,807.90, 123,934.13 and 49,523.36 is: 68,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,807.90 : 123,934.13 = 49,523.36 : x
  2. Step 2: Convert to fraction form
    89,807.90/123,934.13 = 49,523.36/x
  3. Step 3: Cross multiply
    89,807.90x = 123,934.13 × 49,523.36
  4. Step 4: Simplify right side
    89,807.90x = 6,137,633,668.99
  5. Step 5: Solve for x
    x = 6,137,633,668.99/89,807.90
  6. Step 6: Final answer
    x = 68,341.81

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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.