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Finding the Fourth Proportional to 70,836.85, 97,751.69 and 40,600.49

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Solution

The fourth proportional to 70,836.85, 97,751.69 and 40,600.49 is: 56,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,836.85 : 97,751.69 = 40,600.49 : x
  2. Step 2: Convert to fraction form
    70,836.85/97,751.69 = 40,600.49/x
  3. Step 3: Cross multiply
    70,836.85x = 97,751.69 × 40,600.49
  4. Step 4: Simplify right side
    70,836.85x = 3,968,766,613.83
  5. Step 5: Solve for x
    x = 3,968,766,613.83/70,836.85
  6. Step 6: Final answer
    x = 56,026.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.