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Finding the Fourth Proportional to 116,843.04, 161,200.08 and 81,064.80

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Solution

The fourth proportional to 116,843.04, 161,200.08 and 81,064.80 is: 111,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,843.04 : 161,200.08 = 81,064.80 : x
  2. Step 2: Convert to fraction form
    116,843.04/161,200.08 = 81,064.80/x
  3. Step 3: Cross multiply
    116,843.04x = 161,200.08 × 81,064.80
  4. Step 4: Simplify right side
    116,843.04x = 13,067,652,245.18
  5. Step 5: Solve for x
    x = 13,067,652,245.18/116,843.04
  6. Step 6: Final answer
    x = 111,839.37

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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.