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Finding the Fourth Proportional to 89,808.64, 123,935.16 and 49,524.10

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Solution

The fourth proportional to 89,808.64, 123,935.16 and 49,524.10 is: 68,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.64 : 123,935.16 = 49,524.10 : x
  2. Step 2: Convert to fraction form
    89,808.64/123,935.16 = 49,524.10/x
  3. Step 3: Cross multiply
    89,808.64x = 123,935.16 × 49,524.10
  4. Step 4: Simplify right side
    89,808.64x = 6,137,777,257.36
  5. Step 5: Solve for x
    x = 6,137,777,257.36/89,808.64
  6. Step 6: Final answer
    x = 68,342.84

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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.