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Finding the Fourth Proportional to 185,602.86, 278,404.20 and 67,274.01

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Solution

The fourth proportional to 185,602.86, 278,404.20 and 67,274.01 is: 100,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,602.86 : 278,404.20 = 67,274.01 : x
  2. Step 2: Convert to fraction form
    185,602.86/278,404.20 = 67,274.01/x
  3. Step 3: Cross multiply
    185,602.86x = 278,404.20 × 67,274.01
  4. Step 4: Simplify right side
    185,602.86x = 18,729,366,934.84
  5. Step 5: Solve for x
    x = 18,729,366,934.84/185,602.86
  6. Step 6: Final answer
    x = 100,910.98

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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.