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Finding the Fourth Proportional to 61,086.15, 91,631.66 and 29,057.54

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Solution

The fourth proportional to 61,086.15, 91,631.66 and 29,057.54 is: 43,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,086.15 : 91,631.66 = 29,057.54 : x
  2. Step 2: Convert to fraction form
    61,086.15/91,631.66 = 29,057.54/x
  3. Step 3: Cross multiply
    61,086.15x = 91,631.66 × 29,057.54
  4. Step 4: Simplify right side
    61,086.15x = 2,662,590,022.27
  5. Step 5: Solve for x
    x = 2,662,590,022.27/61,086.15
  6. Step 6: Final answer
    x = 43,587.46

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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.