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Finding the Fourth Proportional to 67,129.95, 92,636.84 and 36,913.48

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Solution

The fourth proportional to 67,129.95, 92,636.84 and 36,913.48 is: 50,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,129.95 : 92,636.84 = 36,913.48 : x
  2. Step 2: Convert to fraction form
    67,129.95/92,636.84 = 36,913.48/x
  3. Step 3: Cross multiply
    67,129.95x = 92,636.84 × 36,913.48
  4. Step 4: Simplify right side
    67,129.95x = 3,419,548,140.60
  5. Step 5: Solve for x
    x = 3,419,548,140.60/67,129.95
  6. Step 6: Final answer
    x = 50,939.23

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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.