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Finding the Fourth Proportional to 116,487.80, 174,469.10 and 81,583.24

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Solution

The fourth proportional to 116,487.80, 174,469.10 and 81,583.24 is: 122,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,487.80 : 174,469.10 = 81,583.24 : x
  2. Step 2: Convert to fraction form
    116,487.80/174,469.10 = 81,583.24/x
  3. Step 3: Cross multiply
    116,487.80x = 174,469.10 × 81,583.24
  4. Step 4: Simplify right side
    116,487.80x = 14,233,754,457.88
  5. Step 5: Solve for x
    x = 14,233,754,457.88/116,487.80
  6. Step 6: Final answer
    x = 122,190.95

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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.