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Finding the Fourth Proportional to 119,915.99, 165,485.41 and 66,201.04

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Solution

The fourth proportional to 119,915.99, 165,485.41 and 66,201.04 is: 91,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,915.99 : 165,485.41 = 66,201.04 : x
  2. Step 2: Convert to fraction form
    119,915.99/165,485.41 = 66,201.04/x
  3. Step 3: Cross multiply
    119,915.99x = 165,485.41 × 66,201.04
  4. Step 4: Simplify right side
    119,915.99x = 10,955,306,246.83
  5. Step 5: Solve for x
    x = 10,955,306,246.83/119,915.99
  6. Step 6: Final answer
    x = 91,358.18

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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.