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Finding the Fourth Proportional to 67,308.46, 100,851.09 and 40,933.42

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Solution

The fourth proportional to 67,308.46, 100,851.09 and 40,933.42 is: 61,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,308.46 : 100,851.09 = 40,933.42 : x
  2. Step 2: Convert to fraction form
    67,308.46/100,851.09 = 40,933.42/x
  3. Step 3: Cross multiply
    67,308.46x = 100,851.09 × 40,933.42
  4. Step 4: Simplify right side
    67,308.46x = 4,128,180,024.43
  5. Step 5: Solve for x
    x = 4,128,180,024.43/67,308.46
  6. Step 6: Final answer
    x = 61,332.26

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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.