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Finding the Fourth Proportional to 104,156.97, 143,750.93 and 63,863.61

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Solution

The fourth proportional to 104,156.97, 143,750.93 and 63,863.61 is: 88,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.97 : 143,750.93 = 63,863.61 : x
  2. Step 2: Convert to fraction form
    104,156.97/143,750.93 = 63,863.61/x
  3. Step 3: Cross multiply
    104,156.97x = 143,750.93 × 63,863.61
  4. Step 4: Simplify right side
    104,156.97x = 9,180,453,330.66
  5. Step 5: Solve for x
    x = 9,180,453,330.66/104,156.97
  6. Step 6: Final answer
    x = 88,140.56

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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.