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Finding the Fourth Proportional to 70,440.78, 97,218.23 and 43,591.94

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Solution

The fourth proportional to 70,440.78, 97,218.23 and 43,591.94 is: 60,163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,440.78 : 97,218.23 = 43,591.94 : x
  2. Step 2: Convert to fraction form
    70,440.78/97,218.23 = 43,591.94/x
  3. Step 3: Cross multiply
    70,440.78x = 97,218.23 × 43,591.94
  4. Step 4: Simplify right side
    70,440.78x = 4,237,931,249.07
  5. Step 5: Solve for x
    x = 4,237,931,249.07/70,440.78
  6. Step 6: Final answer
    x = 60,163.04

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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.