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Finding the Fourth Proportional to 73,867.68, 101,936.12 and 42,035.92

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Solution

The fourth proportional to 73,867.68, 101,936.12 and 42,035.92 is: 58,008.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,867.68 : 101,936.12 = 42,035.92 : x
  2. Step 2: Convert to fraction form
    73,867.68/101,936.12 = 42,035.92/x
  3. Step 3: Cross multiply
    73,867.68x = 101,936.12 × 42,035.92
  4. Step 4: Simplify right side
    73,867.68x = 4,284,978,585.43
  5. Step 5: Solve for x
    x = 4,284,978,585.43/73,867.68
  6. Step 6: Final answer
    x = 58,008.84

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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.