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Finding the Fourth Proportional to 123,490.81, 185,236.22 and 29,995.93

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Solution

The fourth proportional to 123,490.81, 185,236.22 and 29,995.93 is: 44,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,490.81 : 185,236.22 = 29,995.93 : x
  2. Step 2: Convert to fraction form
    123,490.81/185,236.22 = 29,995.93/x
  3. Step 3: Cross multiply
    123,490.81x = 185,236.22 × 29,995.93
  4. Step 4: Simplify right side
    123,490.81x = 5,556,332,538.60
  5. Step 5: Solve for x
    x = 5,556,332,538.60/123,490.81
  6. Step 6: Final answer
    x = 44,993.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.