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Finding the Fourth Proportional to 119,760.68, 165,262.74 and 68,761.64

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Solution

The fourth proportional to 119,760.68, 165,262.74 and 68,761.64 is: 94,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,760.68 : 165,262.74 = 68,761.64 : x
  2. Step 2: Convert to fraction form
    119,760.68/165,262.74 = 68,761.64/x
  3. Step 3: Cross multiply
    119,760.68x = 165,262.74 × 68,761.64
  4. Step 4: Simplify right side
    119,760.68x = 11,363,737,033.29
  5. Step 5: Solve for x
    x = 11,363,737,033.29/119,760.68
  6. Step 6: Final answer
    x = 94,887.05

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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.