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Finding the Fourth Proportional to 67,243.62, 100,881.22 and 37,681.86

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Solution

The fourth proportional to 67,243.62, 100,881.22 and 37,681.86 is: 56,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,243.62 : 100,881.22 = 37,681.86 : x
  2. Step 2: Convert to fraction form
    67,243.62/100,881.22 = 37,681.86/x
  3. Step 3: Cross multiply
    67,243.62x = 100,881.22 × 37,681.86
  4. Step 4: Simplify right side
    67,243.62x = 3,801,392,008.67
  5. Step 5: Solve for x
    x = 3,801,392,008.67/67,243.62
  6. Step 6: Final answer
    x = 56,531.64

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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.