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Finding the Fourth Proportional to 67,855.22, 93,640.77 and 37,642.51

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Solution

The fourth proportional to 67,855.22, 93,640.77 and 37,642.51 is: 51,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,855.22 : 93,640.77 = 37,642.51 : x
  2. Step 2: Convert to fraction form
    67,855.22/93,640.77 = 37,642.51/x
  3. Step 3: Cross multiply
    67,855.22x = 93,640.77 × 37,642.51
  4. Step 4: Simplify right side
    67,855.22x = 3,524,873,621.13
  5. Step 5: Solve for x
    x = 3,524,873,621.13/67,855.22
  6. Step 6: Final answer
    x = 51,946.98

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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.