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Finding the Fourth Proportional to 61,204.69, 91,720.86 and 48,669.03

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Solution

The fourth proportional to 61,204.69, 91,720.86 and 48,669.03 is: 72,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,204.69 : 91,720.86 = 48,669.03 : x
  2. Step 2: Convert to fraction form
    61,204.69/91,720.86 = 48,669.03/x
  3. Step 3: Cross multiply
    61,204.69x = 91,720.86 × 48,669.03
  4. Step 4: Simplify right side
    61,204.69x = 4,463,965,286.97
  5. Step 5: Solve for x
    x = 4,463,965,286.97/61,204.69
  6. Step 6: Final answer
    x = 72,935.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.