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Finding the Fourth Proportional to 75,295.44, 112,963.82 and 61,220.48

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Solution

The fourth proportional to 75,295.44, 112,963.82 and 61,220.48 is: 91,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,295.44 : 112,963.82 = 61,220.48 : x
  2. Step 2: Convert to fraction form
    75,295.44/112,963.82 = 61,220.48/x
  3. Step 3: Cross multiply
    75,295.44x = 112,963.82 × 61,220.48
  4. Step 4: Simplify right side
    75,295.44x = 6,915,698,412.11
  5. Step 5: Solve for x
    x = 6,915,698,412.11/75,295.44
  6. Step 6: Final answer
    x = 91,847.51

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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.