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Finding the Fourth Proportional to 108,710.22, 149,816.97 and 84,799.02

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Solution

The fourth proportional to 108,710.22, 149,816.97 and 84,799.02 is: 116,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,710.22 : 149,816.97 = 84,799.02 : x
  2. Step 2: Convert to fraction form
    108,710.22/149,816.97 = 84,799.02/x
  3. Step 3: Cross multiply
    108,710.22x = 149,816.97 × 84,799.02
  4. Step 4: Simplify right side
    108,710.22x = 12,704,332,235.37
  5. Step 5: Solve for x
    x = 12,704,332,235.37/108,710.22
  6. Step 6: Final answer
    x = 116,864.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.