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Finding the Fourth Proportional to 119,568.30, 164,992.05 and 73,620.65

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Solution

The fourth proportional to 119,568.30, 164,992.05 and 73,620.65 is: 101,588.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,568.30 : 164,992.05 = 73,620.65 : x
  2. Step 2: Convert to fraction form
    119,568.30/164,992.05 = 73,620.65/x
  3. Step 3: Cross multiply
    119,568.30x = 164,992.05 × 73,620.65
  4. Step 4: Simplify right side
    119,568.30x = 12,146,821,140.87
  5. Step 5: Solve for x
    x = 12,146,821,140.87/119,568.30
  6. Step 6: Final answer
    x = 101,588.98

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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.