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Finding the Fourth Proportional to 89,808.80, 123,941.76 and 49,522.56

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Solution

The fourth proportional to 89,808.80, 123,941.76 and 49,522.56 is: 68,344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.80 : 123,941.76 = 49,522.56 : x
  2. Step 2: Convert to fraction form
    89,808.80/123,941.76 = 49,522.56/x
  3. Step 3: Cross multiply
    89,808.80x = 123,941.76 × 49,522.56
  4. Step 4: Simplify right side
    89,808.80x = 6,137,913,246.11
  5. Step 5: Solve for x
    x = 6,137,913,246.11/89,808.80
  6. Step 6: Final answer
    x = 68,344.23

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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.