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Finding the Fourth Proportional to 119,790.44, 165,310.02 and 65,345.61

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Solution

The fourth proportional to 119,790.44, 165,310.02 and 65,345.61 is: 90,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,790.44 : 165,310.02 = 65,345.61 : x
  2. Step 2: Convert to fraction form
    119,790.44/165,310.02 = 65,345.61/x
  3. Step 3: Cross multiply
    119,790.44x = 165,310.02 × 65,345.61
  4. Step 4: Simplify right side
    119,790.44x = 10,802,284,096.01
  5. Step 5: Solve for x
    x = 10,802,284,096.01/119,790.44
  6. Step 6: Final answer
    x = 90,176.52

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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.