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Finding the Fourth Proportional to 68,145.74, 94,041.11 and 37,930.42

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Solution

The fourth proportional to 68,145.74, 94,041.11 and 37,930.42 is: 52,343.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,145.74 : 94,041.11 = 37,930.42 : x
  2. Step 2: Convert to fraction form
    68,145.74/94,041.11 = 37,930.42/x
  3. Step 3: Cross multiply
    68,145.74x = 94,041.11 × 37,930.42
  4. Step 4: Simplify right side
    68,145.74x = 3,567,018,659.29
  5. Step 5: Solve for x
    x = 3,567,018,659.29/68,145.74
  6. Step 6: Final answer
    x = 52,343.97

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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.