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Finding the Fourth Proportional to 119,560.77, 164,993.94 and 65,845.71

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Solution

The fourth proportional to 119,560.77, 164,993.94 and 65,845.71 is: 90,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,560.77 : 164,993.94 = 65,845.71 : x
  2. Step 2: Convert to fraction form
    119,560.77/164,993.94 = 65,845.71/x
  3. Step 3: Cross multiply
    119,560.77x = 164,993.94 × 65,845.71
  4. Step 4: Simplify right side
    119,560.77x = 10,864,143,125.00
  5. Step 5: Solve for x
    x = 10,864,143,125.00/119,560.77
  6. Step 6: Final answer
    x = 90,867.12

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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.