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Finding the Fourth Proportional to 67,293.50, 100,940.26 and 18,045.50

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Solution

The fourth proportional to 67,293.50, 100,940.26 and 18,045.50 is: 27,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,293.50 : 100,940.26 = 18,045.50 : x
  2. Step 2: Convert to fraction form
    67,293.50/100,940.26 = 18,045.50/x
  3. Step 3: Cross multiply
    67,293.50x = 100,940.26 × 18,045.50
  4. Step 4: Simplify right side
    67,293.50x = 1,821,517,461.83
  5. Step 5: Solve for x
    x = 1,821,517,461.83/67,293.50
  6. Step 6: Final answer
    x = 27,068.25

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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.