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Finding the Fourth Proportional to 119,568.31, 164,992.06 and 73,620.66

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Solution

The fourth proportional to 119,568.31, 164,992.06 and 73,620.66 is: 101,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,568.31 : 164,992.06 = 73,620.66 : x
  2. Step 2: Convert to fraction form
    119,568.31/164,992.06 = 73,620.66/x
  3. Step 3: Cross multiply
    119,568.31x = 164,992.06 × 73,620.66
  4. Step 4: Simplify right side
    119,568.31x = 12,146,824,351.96
  5. Step 5: Solve for x
    x = 12,146,824,351.96/119,568.31
  6. Step 6: Final answer
    x = 101,588.99

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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.