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Finding the Fourth Proportional to 96,061.64, 143,797.19 and 81,889.88

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Solution

The fourth proportional to 96,061.64, 143,797.19 and 81,889.88 is: 122,583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,061.64 : 143,797.19 = 81,889.88 : x
  2. Step 2: Convert to fraction form
    96,061.64/143,797.19 = 81,889.88/x
  3. Step 3: Cross multiply
    96,061.64x = 143,797.19 × 81,889.88
  4. Step 4: Simplify right side
    96,061.64x = 11,775,533,505.00
  5. Step 5: Solve for x
    x = 11,775,533,505.00/96,061.64
  6. Step 6: Final answer
    x = 122,583.11

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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.