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Finding the Fourth Proportional to 89,809.62, 123,934.62 and 49,523.37

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Solution

The fourth proportional to 89,809.62, 123,934.62 and 49,523.37 is: 68,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,809.62 : 123,934.62 = 49,523.37 : x
  2. Step 2: Convert to fraction form
    89,809.62/123,934.62 = 49,523.37/x
  3. Step 3: Cross multiply
    89,809.62x = 123,934.62 × 49,523.37
  4. Step 4: Simplify right side
    89,809.62x = 6,137,660,042.07
  5. Step 5: Solve for x
    x = 6,137,660,042.07/89,809.62
  6. Step 6: Final answer
    x = 68,340.79

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1.5x scale

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.