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Finding the Fourth Proportional to 73,292.46, 109,940.88 and 20,696.46

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Solution

The fourth proportional to 73,292.46, 109,940.88 and 20,696.46 is: 31,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,292.46 : 109,940.88 = 20,696.46 : x
  2. Step 2: Convert to fraction form
    73,292.46/109,940.88 = 20,696.46/x
  3. Step 3: Cross multiply
    73,292.46x = 109,940.88 × 20,696.46
  4. Step 4: Simplify right side
    73,292.46x = 2,275,387,025.28
  5. Step 5: Solve for x
    x = 2,275,387,025.28/73,292.46
  6. Step 6: Final answer
    x = 31,045.31

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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.