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Finding the Fourth Proportional to 70,272.93, 105,240.48 and 40,195.98

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Solution

The fourth proportional to 70,272.93, 105,240.48 and 40,195.98 is: 60,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.93 : 105,240.48 = 40,195.98 : x
  2. Step 2: Convert to fraction form
    70,272.93/105,240.48 = 40,195.98/x
  3. Step 3: Cross multiply
    70,272.93x = 105,240.48 × 40,195.98
  4. Step 4: Simplify right side
    70,272.93x = 4,230,244,229.27
  5. Step 5: Solve for x
    x = 4,230,244,229.27/70,272.93
  6. Step 6: Final answer
    x = 60,197.35

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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.