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Finding the Fourth Proportional to 67,661.80, 101,406.30 and 52,001.80

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Solution

The fourth proportional to 67,661.80, 101,406.30 and 52,001.80 is: 77,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,661.80 : 101,406.30 = 52,001.80 : x
  2. Step 2: Convert to fraction form
    67,661.80/101,406.30 = 52,001.80/x
  3. Step 3: Cross multiply
    67,661.80x = 101,406.30 × 52,001.80
  4. Step 4: Simplify right side
    67,661.80x = 5,273,310,131.34
  5. Step 5: Solve for x
    x = 5,273,310,131.34/67,661.80
  6. Step 6: Final answer
    x = 77,936.30

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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.