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Finding the Fourth Proportional to 119,742.17, 165,241.03 and 66,026.28

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Solution

The fourth proportional to 119,742.17, 165,241.03 and 66,026.28 is: 91,114.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,742.17 : 165,241.03 = 66,026.28 : x
  2. Step 2: Convert to fraction form
    119,742.17/165,241.03 = 66,026.28/x
  3. Step 3: Cross multiply
    119,742.17x = 165,241.03 × 66,026.28
  4. Step 4: Simplify right side
    119,742.17x = 10,910,250,514.27
  5. Step 5: Solve for x
    x = 10,910,250,514.27/119,742.17
  6. Step 6: Final answer
    x = 91,114.52

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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.