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Finding the Fourth Proportional to 232,611.44, 320,965.34 and 137,136.56

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Solution

The fourth proportional to 232,611.44, 320,965.34 and 137,136.56 is: 189,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,611.44 : 320,965.34 = 137,136.56 : x
  2. Step 2: Convert to fraction form
    232,611.44/320,965.34 = 137,136.56/x
  3. Step 3: Cross multiply
    232,611.44x = 320,965.34 × 137,136.56
  4. Step 4: Simplify right side
    232,611.44x = 44,016,080,316.32
  5. Step 5: Solve for x
    x = 44,016,080,316.32/232,611.44
  6. Step 6: Final answer
    x = 189,225.78

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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.