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Finding the Fourth Proportional to 70,608.44, 97,403.61 and 45,087.97

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Solution

The fourth proportional to 70,608.44, 97,403.61 and 45,087.97 is: 62,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608.44 : 97,403.61 = 45,087.97 : x
  2. Step 2: Convert to fraction form
    70,608.44/97,403.61 = 45,087.97/x
  3. Step 3: Cross multiply
    70,608.44x = 97,403.61 × 45,087.97
  4. Step 4: Simplify right side
    70,608.44x = 4,391,731,045.57
  5. Step 5: Solve for x
    x = 4,391,731,045.57/70,608.44
  6. Step 6: Final answer
    x = 62,198.39

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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.