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Finding the Fourth Proportional to 70,004.34, 105,067.19 and 36,747.90

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Solution

The fourth proportional to 70,004.34, 105,067.19 and 36,747.90 is: 55,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,004.34 : 105,067.19 = 36,747.90 : x
  2. Step 2: Convert to fraction form
    70,004.34/105,067.19 = 36,747.90/x
  3. Step 3: Cross multiply
    70,004.34x = 105,067.19 × 36,747.90
  4. Step 4: Simplify right side
    70,004.34x = 3,860,998,591.40
  5. Step 5: Solve for x
    x = 3,860,998,591.40/70,004.34
  6. Step 6: Final answer
    x = 55,153.70

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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.