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Finding the Fourth Proportional to 119,745.98, 165,245.66 and 66,033.26

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Solution

The fourth proportional to 119,745.98, 165,245.66 and 66,033.26 is: 91,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,745.98 : 165,245.66 = 66,033.26 : x
  2. Step 2: Convert to fraction form
    119,745.98/165,245.66 = 66,033.26/x
  3. Step 3: Cross multiply
    119,745.98x = 165,245.66 × 66,033.26
  4. Step 4: Simplify right side
    119,745.98x = 10,911,709,630.65
  5. Step 5: Solve for x
    x = 10,911,709,630.65/119,745.98
  6. Step 6: Final answer
    x = 91,123.81

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1.5x scale

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.