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Finding the Fourth Proportional to 119,896.98, 165,456.90 and 66,182.01

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Solution

The fourth proportional to 119,896.98, 165,456.90 and 66,182.01 is: 91,330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,896.98 : 165,456.90 = 66,182.01 : x
  2. Step 2: Convert to fraction form
    119,896.98/165,456.90 = 66,182.01/x
  3. Step 3: Cross multiply
    119,896.98x = 165,456.90 × 66,182.01
  4. Step 4: Simplify right side
    119,896.98x = 10,950,270,210.37
  5. Step 5: Solve for x
    x = 10,950,270,210.37/119,896.98
  6. Step 6: Final answer
    x = 91,330.66

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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.