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Finding the Fourth Proportional to 119,741.88, 165,240.18 and 66,026.88

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Solution

The fourth proportional to 119,741.88, 165,240.18 and 66,026.88 is: 91,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,741.88 : 165,240.18 = 66,026.88 : x
  2. Step 2: Convert to fraction form
    119,741.88/165,240.18 = 66,026.88/x
  3. Step 3: Cross multiply
    119,741.88x = 165,240.18 × 66,026.88
  4. Step 4: Simplify right side
    119,741.88x = 10,910,293,536.04
  5. Step 5: Solve for x
    x = 10,910,293,536.04/119,741.88
  6. Step 6: Final answer
    x = 91,115.10

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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.