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Finding the Fourth Proportional to 70,755.45, 97,687.34 and 43,926.43

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Solution

The fourth proportional to 70,755.45, 97,687.34 and 43,926.43 is: 60,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,755.45 : 97,687.34 = 43,926.43 : x
  2. Step 2: Convert to fraction form
    70,755.45/97,687.34 = 43,926.43/x
  3. Step 3: Cross multiply
    70,755.45x = 97,687.34 × 43,926.43
  4. Step 4: Simplify right side
    70,755.45x = 4,291,055,723.78
  5. Step 5: Solve for x
    x = 4,291,055,723.78/70,755.45
  6. Step 6: Final answer
    x = 60,646.29

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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.