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Finding the Fourth Proportional to 89,794.40, 123,914.27 and 49,507.43

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Solution

The fourth proportional to 89,794.40, 123,914.27 and 49,507.43 is: 68,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,794.40 : 123,914.27 = 49,507.43 : x
  2. Step 2: Convert to fraction form
    89,794.40/123,914.27 = 49,507.43/x
  3. Step 3: Cross multiply
    89,794.40x = 123,914.27 × 49,507.43
  4. Step 4: Simplify right side
    89,794.40x = 6,134,676,552.22
  5. Step 5: Solve for x
    x = 6,134,676,552.22/89,794.40
  6. Step 6: Final answer
    x = 68,319.15

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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.