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Finding the Fourth Proportional to 78,698.97, 118,083.22 and 41,250.08

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Solution

The fourth proportional to 78,698.97, 118,083.22 and 41,250.08 is: 61,893.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698.97 : 118,083.22 = 41,250.08 : x
  2. Step 2: Convert to fraction form
    78,698.97/118,083.22 = 41,250.08/x
  3. Step 3: Cross multiply
    78,698.97x = 118,083.22 × 41,250.08
  4. Step 4: Simplify right side
    78,698.97x = 4,870,942,463.74
  5. Step 5: Solve for x
    x = 4,870,942,463.74/78,698.97
  6. Step 6: Final answer
    x = 61,893.34

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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.