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Finding the Fourth Proportional to 161,843.40, 222,835.59 and 137,596.59

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Solution

The fourth proportional to 161,843.40, 222,835.59 and 137,596.59 is: 189,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,843.40 : 222,835.59 = 137,596.59 : x
  2. Step 2: Convert to fraction form
    161,843.40/222,835.59 = 137,596.59/x
  3. Step 3: Cross multiply
    161,843.40x = 222,835.59 × 137,596.59
  4. Step 4: Simplify right side
    161,843.40x = 30,661,417,314.64
  5. Step 5: Solve for x
    x = 30,661,417,314.64/161,843.40
  6. Step 6: Final answer
    x = 189,451.14

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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.