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Finding the Fourth Proportional to 67,224.78, 92,570.12 and 65,732.98

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Solution

The fourth proportional to 67,224.78, 92,570.12 and 65,732.98 is: 90,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,224.78 : 92,570.12 = 65,732.98 : x
  2. Step 2: Convert to fraction form
    67,224.78/92,570.12 = 65,732.98/x
  3. Step 3: Cross multiply
    67,224.78x = 92,570.12 × 65,732.98
  4. Step 4: Simplify right side
    67,224.78x = 6,084,909,846.56
  5. Step 5: Solve for x
    x = 6,084,909,846.56/67,224.78
  6. Step 6: Final answer
    x = 90,515.88

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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.