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Finding the Fourth Proportional to 119,682.54, 165,155.49 and 65,956.86

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Solution

The fourth proportional to 119,682.54, 165,155.49 and 65,956.86 is: 91,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,682.54 : 165,155.49 = 65,956.86 : x
  2. Step 2: Convert to fraction form
    119,682.54/165,155.49 = 65,956.86/x
  3. Step 3: Cross multiply
    119,682.54x = 165,155.49 × 65,956.86
  4. Step 4: Simplify right side
    119,682.54x = 10,893,137,532.16
  5. Step 5: Solve for x
    x = 10,893,137,532.16/119,682.54
  6. Step 6: Final answer
    x = 91,016.93

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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.