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Finding the Fourth Proportional to 185,399.75, 277,934.70 and 67,044.80

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Solution

The fourth proportional to 185,399.75, 277,934.70 and 67,044.80 is: 100,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,399.75 : 277,934.70 = 67,044.80 : x
  2. Step 2: Convert to fraction form
    185,399.75/277,934.70 = 67,044.80/x
  3. Step 3: Cross multiply
    185,399.75x = 277,934.70 × 67,044.80
  4. Step 4: Simplify right side
    185,399.75x = 18,634,076,374.56
  5. Step 5: Solve for x
    x = 18,634,076,374.56/185,399.75
  6. Step 6: Final answer
    x = 100,507.56

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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.