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Finding the Fourth Proportional to 119,741.76, 165,254.72 and 68,761.17

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Solution

The fourth proportional to 119,741.76, 165,254.72 and 68,761.17 is: 94,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,741.76 : 165,254.72 = 68,761.17 : x
  2. Step 2: Convert to fraction form
    119,741.76/165,254.72 = 68,761.17/x
  3. Step 3: Cross multiply
    119,741.76x = 165,254.72 × 68,761.17
  4. Step 4: Simplify right side
    119,741.76x = 11,363,107,551.42
  5. Step 5: Solve for x
    x = 11,363,107,551.42/119,741.76
  6. Step 6: Final answer
    x = 94,896.78

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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.