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Finding the Fourth Proportional to 96,061.88, 143,797.56 and 81,890.12

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Solution

The fourth proportional to 96,061.88, 143,797.56 and 81,890.12 is: 122,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,061.88 : 143,797.56 = 81,890.12 : x
  2. Step 2: Convert to fraction form
    96,061.88/143,797.56 = 81,890.12/x
  3. Step 3: Cross multiply
    96,061.88x = 143,797.56 × 81,890.12
  4. Step 4: Simplify right side
    96,061.88x = 11,775,599,444.11
  5. Step 5: Solve for x
    x = 11,775,599,444.11/96,061.88
  6. Step 6: Final answer
    x = 122,583.48

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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.