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Finding the Fourth Proportional to 70,319.45, 105,480.26 and 22,934.34

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Solution

The fourth proportional to 70,319.45, 105,480.26 and 22,934.34 is: 34,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,319.45 : 105,480.26 = 22,934.34 : x
  2. Step 2: Convert to fraction form
    70,319.45/105,480.26 = 22,934.34/x
  3. Step 3: Cross multiply
    70,319.45x = 105,480.26 × 22,934.34
  4. Step 4: Simplify right side
    70,319.45x = 2,419,120,214.21
  5. Step 5: Solve for x
    x = 2,419,120,214.21/70,319.45
  6. Step 6: Final answer
    x = 34,401.86

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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.