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Finding the Fourth Proportional to 119,555.73, 164,986.11 and 65,840.37

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Solution

The fourth proportional to 119,555.73, 164,986.11 and 65,840.37 is: 90,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,555.73 : 164,986.11 = 65,840.37 : x
  2. Step 2: Convert to fraction form
    119,555.73/164,986.11 = 65,840.37/x
  3. Step 3: Cross multiply
    119,555.73x = 164,986.11 × 65,840.37
  4. Step 4: Simplify right side
    119,555.73x = 10,862,746,527.26
  5. Step 5: Solve for x
    x = 10,862,746,527.26/119,555.73
  6. Step 6: Final answer
    x = 90,859.27

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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.