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Finding the Fourth Proportional to 89,807.26, 123,941.40 and 49,528.90

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Solution

The fourth proportional to 89,807.26, 123,941.40 and 49,528.90 is: 68,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,807.26 : 123,941.40 = 49,528.90 : x
  2. Step 2: Convert to fraction form
    89,807.26/123,941.40 = 49,528.90/x
  3. Step 3: Cross multiply
    89,807.26x = 123,941.40 × 49,528.90
  4. Step 4: Simplify right side
    89,807.26x = 6,138,681,206.46
  5. Step 5: Solve for x
    x = 6,138,681,206.46/89,807.26
  6. Step 6: Final answer
    x = 68,353.95

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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.