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Finding the Fourth Proportional to 119,169.66, 164,455.47 and 65,455.92

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Solution

The fourth proportional to 119,169.66, 164,455.47 and 65,455.92 is: 90,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,169.66 : 164,455.47 = 65,455.92 : x
  2. Step 2: Convert to fraction form
    119,169.66/164,455.47 = 65,455.92/x
  3. Step 3: Cross multiply
    119,169.66x = 164,455.47 × 65,455.92
  4. Step 4: Simplify right side
    119,169.66x = 10,764,584,087.88
  5. Step 5: Solve for x
    x = 10,764,584,087.88/119,169.66
  6. Step 6: Final answer
    x = 90,329.91

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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.