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Finding the Fourth Proportional to 123,489.48, 185,232.78 and 29,995.32

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Solution

The fourth proportional to 123,489.48, 185,232.78 and 29,995.32 is: 44,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,489.48 : 185,232.78 = 29,995.32 : x
  2. Step 2: Convert to fraction form
    123,489.48/185,232.78 = 29,995.32/x
  3. Step 3: Cross multiply
    123,489.48x = 185,232.78 × 29,995.32
  4. Step 4: Simplify right side
    123,489.48x = 5,556,116,510.59
  5. Step 5: Solve for x
    x = 5,556,116,510.59/123,489.48
  6. Step 6: Final answer
    x = 44,992.63

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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.