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Finding the Fourth Proportional to 67,889.22, 101,800.94 and 39,818.48

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Solution

The fourth proportional to 67,889.22, 101,800.94 and 39,818.48 is: 59,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,889.22 : 101,800.94 = 39,818.48 : x
  2. Step 2: Convert to fraction form
    67,889.22/101,800.94 = 39,818.48/x
  3. Step 3: Cross multiply
    67,889.22x = 101,800.94 × 39,818.48
  4. Step 4: Simplify right side
    67,889.22x = 4,053,558,693.37
  5. Step 5: Solve for x
    x = 4,053,558,693.37/67,889.22
  6. Step 6: Final answer
    x = 59,708.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.