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Finding the Fourth Proportional to 116,588.80, 174,620.08 and 81,684.24

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Solution

The fourth proportional to 116,588.80, 174,620.08 and 81,684.24 is: 122,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,588.80 : 174,620.08 = 81,684.24 : x
  2. Step 2: Convert to fraction form
    116,588.80/174,620.08 = 81,684.24/x
  3. Step 3: Cross multiply
    116,588.80x = 174,620.08 × 81,684.24
  4. Step 4: Simplify right side
    116,588.80x = 14,263,708,523.54
  5. Step 5: Solve for x
    x = 14,263,708,523.54/116,588.80
  6. Step 6: Final answer
    x = 122,342.01

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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.