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Finding the Fourth Proportional to 108,536.82, 162,674.01 and 55,917.60

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Solution

The fourth proportional to 108,536.82, 162,674.01 and 55,917.60 is: 83,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,536.82 : 162,674.01 = 55,917.60 : x
  2. Step 2: Convert to fraction form
    108,536.82/162,674.01 = 55,917.60/x
  3. Step 3: Cross multiply
    108,536.82x = 162,674.01 × 55,917.60
  4. Step 4: Simplify right side
    108,536.82x = 9,096,340,221.58
  5. Step 5: Solve for x
    x = 9,096,340,221.58/108,536.82
  6. Step 6: Final answer
    x = 83,808.80

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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.