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Finding the Fourth Proportional to 49,866.39, 68,734.86 and 43,389.45

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Solution

The fourth proportional to 49,866.39, 68,734.86 and 43,389.45 is: 59,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,866.39 : 68,734.86 = 43,389.45 : x
  2. Step 2: Convert to fraction form
    49,866.39/68,734.86 = 43,389.45/x
  3. Step 3: Cross multiply
    49,866.39x = 68,734.86 × 43,389.45
  4. Step 4: Simplify right side
    49,866.39x = 2,982,367,771.23
  5. Step 5: Solve for x
    x = 2,982,367,771.23/49,866.39
  6. Step 6: Final answer
    x = 59,807.17

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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.