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Finding the Fourth Proportional to 67,461.75, 101,174.98 and 20,064.07

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Solution

The fourth proportional to 67,461.75, 101,174.98 and 20,064.07 is: 30,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,461.75 : 101,174.98 = 20,064.07 : x
  2. Step 2: Convert to fraction form
    67,461.75/101,174.98 = 20,064.07/x
  3. Step 3: Cross multiply
    67,461.75x = 101,174.98 × 20,064.07
  4. Step 4: Simplify right side
    67,461.75x = 2,029,981,880.97
  5. Step 5: Solve for x
    x = 2,029,981,880.97/67,461.75
  6. Step 6: Final answer
    x = 30,090.86

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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.