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Finding the Fourth Proportional to 119,805.88, 165,331.65 and 66,094.24

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Solution

The fourth proportional to 119,805.88, 165,331.65 and 66,094.24 is: 91,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,805.88 : 165,331.65 = 66,094.24 : x
  2. Step 2: Convert to fraction form
    119,805.88/165,331.65 = 66,094.24/x
  3. Step 3: Cross multiply
    119,805.88x = 165,331.65 × 66,094.24
  4. Step 4: Simplify right side
    119,805.88x = 10,927,469,754.70
  5. Step 5: Solve for x
    x = 10,927,469,754.70/119,805.88
  6. Step 6: Final answer
    x = 91,209.80

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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.