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Finding the Fourth Proportional to 119,682.58, 165,159.97 and 65,972.58

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Solution

The fourth proportional to 119,682.58, 165,159.97 and 65,972.58 is: 91,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,682.58 : 165,159.97 = 65,972.58 : x
  2. Step 2: Convert to fraction form
    119,682.58/165,159.97 = 65,972.58/x
  3. Step 3: Cross multiply
    119,682.58x = 165,159.97 × 65,972.58
  4. Step 4: Simplify right side
    119,682.58x = 10,896,029,168.69
  5. Step 5: Solve for x
    x = 10,896,029,168.69/119,682.58
  6. Step 6: Final answer
    x = 91,041.06

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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.