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Finding the Fourth Proportional to 123,224.80, 184,837.20 and 115,448.80

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Solution

The fourth proportional to 123,224.80, 184,837.20 and 115,448.80 is: 173,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,224.80 : 184,837.20 = 115,448.80 : x
  2. Step 2: Convert to fraction form
    123,224.80/184,837.20 = 115,448.80/x
  3. Step 3: Cross multiply
    123,224.80x = 184,837.20 × 115,448.80
  4. Step 4: Simplify right side
    123,224.80x = 21,339,232,935.36
  5. Step 5: Solve for x
    x = 21,339,232,935.36/123,224.80
  6. Step 6: Final answer
    x = 173,173.20

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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.