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Finding the Fourth Proportional to 119,643.33, 165,107.81 and 69,371.49

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Solution

The fourth proportional to 119,643.33, 165,107.81 and 69,371.49 is: 95,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,643.33 : 165,107.81 = 69,371.49 : x
  2. Step 2: Convert to fraction form
    119,643.33/165,107.81 = 69,371.49/x
  3. Step 3: Cross multiply
    119,643.33x = 165,107.81 × 69,371.49
  4. Step 4: Simplify right side
    119,643.33x = 11,453,774,790.34
  5. Step 5: Solve for x
    x = 11,453,774,790.34/119,643.33
  6. Step 6: Final answer
    x = 95,732.66

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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.