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Finding the Fourth Proportional to 70,817.97, 97,697.57 and 43,906.53

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Solution

The fourth proportional to 70,817.97, 97,697.57 and 43,906.53 is: 60,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.97 : 97,697.57 = 43,906.53 : x
  2. Step 2: Convert to fraction form
    70,817.97/97,697.57 = 43,906.53/x
  3. Step 3: Cross multiply
    70,817.97x = 97,697.57 × 43,906.53
  4. Step 4: Simplify right side
    70,817.97x = 4,289,561,068.60
  5. Step 5: Solve for x
    x = 4,289,561,068.60/70,817.97
  6. Step 6: Final answer
    x = 60,571.65

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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.