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Finding the Fourth Proportional to 123,244.80, 184,867.20 and 103,999.20

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Solution

The fourth proportional to 123,244.80, 184,867.20 and 103,999.20 is: 155,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,244.80 : 184,867.20 = 103,999.20 : x
  2. Step 2: Convert to fraction form
    123,244.80/184,867.20 = 103,999.20/x
  3. Step 3: Cross multiply
    123,244.80x = 184,867.20 × 103,999.20
  4. Step 4: Simplify right side
    123,244.80x = 19,226,040,906.24
  5. Step 5: Solve for x
    x = 19,226,040,906.24/123,244.80
  6. Step 6: Final answer
    x = 155,998.80

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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.