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Finding the Fourth Proportional to 161,136.60, 222,164.13 and 115,251.51

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Solution

The fourth proportional to 161,136.60, 222,164.13 and 115,251.51 is: 158,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,136.60 : 222,164.13 = 115,251.51 : x
  2. Step 2: Convert to fraction form
    161,136.60/222,164.13 = 115,251.51/x
  3. Step 3: Cross multiply
    161,136.60x = 222,164.13 × 115,251.51
  4. Step 4: Simplify right side
    161,136.60x = 25,604,751,450.34
  5. Step 5: Solve for x
    x = 25,604,751,450.34/161,136.60
  6. Step 6: Final answer
    x = 158,900.90

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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.