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Finding the Fourth Proportional to 67,293.99, 100,864.44 and 40,940.64

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Solution

The fourth proportional to 67,293.99, 100,864.44 and 40,940.64 is: 61,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,293.99 : 100,864.44 = 40,940.64 : x
  2. Step 2: Convert to fraction form
    67,293.99/100,864.44 = 40,940.64/x
  3. Step 3: Cross multiply
    67,293.99x = 100,864.44 × 40,940.64
  4. Step 4: Simplify right side
    67,293.99x = 4,129,454,726.84
  5. Step 5: Solve for x
    x = 4,129,454,726.84/67,293.99
  6. Step 6: Final answer
    x = 61,364.39

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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.