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Finding the Fourth Proportional to 70,797.21, 106,195.85 and 48,543.11

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Solution

The fourth proportional to 70,797.21, 106,195.85 and 48,543.11 is: 72,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,797.21 : 106,195.85 = 48,543.11 : x
  2. Step 2: Convert to fraction form
    70,797.21/106,195.85 = 48,543.11/x
  3. Step 3: Cross multiply
    70,797.21x = 106,195.85 × 48,543.11
  4. Step 4: Simplify right side
    70,797.21x = 5,155,077,205.35
  5. Step 5: Solve for x
    x = 5,155,077,205.35/70,797.21
  6. Step 6: Final answer
    x = 72,814.70

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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.