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Finding the Fourth Proportional to 67,139.80, 92,651.06 and 36,925.11

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Solution

The fourth proportional to 67,139.80, 92,651.06 and 36,925.11 is: 50,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,139.80 : 92,651.06 = 36,925.11 : x
  2. Step 2: Convert to fraction form
    67,139.80/92,651.06 = 36,925.11/x
  3. Step 3: Cross multiply
    67,139.80x = 92,651.06 × 36,925.11
  4. Step 4: Simplify right side
    67,139.80x = 3,421,150,674.43
  5. Step 5: Solve for x
    x = 3,421,150,674.43/67,139.80
  6. Step 6: Final answer
    x = 50,955.63

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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.