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Finding the Fourth Proportional to 119,382.36, 164,751.96 and 65,671.52

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Solution

The fourth proportional to 119,382.36, 164,751.96 and 65,671.52 is: 90,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,382.36 : 164,751.96 = 65,671.52 : x
  2. Step 2: Convert to fraction form
    119,382.36/164,751.96 = 65,671.52/x
  3. Step 3: Cross multiply
    119,382.36x = 164,751.96 × 65,671.52
  4. Step 4: Simplify right side
    119,382.36x = 10,819,511,636.18
  5. Step 5: Solve for x
    x = 10,819,511,636.18/119,382.36
  6. Step 6: Final answer
    x = 90,629.06

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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.