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Finding the Fourth Proportional to 116,517.96, 174,666.21 and 74,279.48

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Solution

The fourth proportional to 116,517.96, 174,666.21 and 74,279.48 is: 111,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,517.96 : 174,666.21 = 74,279.48 : x
  2. Step 2: Convert to fraction form
    116,517.96/174,666.21 = 74,279.48/x
  3. Step 3: Cross multiply
    116,517.96x = 174,666.21 × 74,279.48
  4. Step 4: Simplify right side
    116,517.96x = 12,974,114,379.04
  5. Step 5: Solve for x
    x = 12,974,114,379.04/116,517.96
  6. Step 6: Final answer
    x = 111,348.62

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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.