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Finding the Fourth Proportional to 165,491.73, 248,237.69 and 115,669.10

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Solution

The fourth proportional to 165,491.73, 248,237.69 and 115,669.10 is: 173,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,491.73 : 248,237.69 = 115,669.10 : x
  2. Step 2: Convert to fraction form
    165,491.73/248,237.69 = 115,669.10/x
  3. Step 3: Cross multiply
    165,491.73x = 248,237.69 × 115,669.10
  4. Step 4: Simplify right side
    165,491.73x = 28,713,428,368.85
  5. Step 5: Solve for x
    x = 28,713,428,368.85/165,491.73
  6. Step 6: Final answer
    x = 173,503.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.