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Finding the Fourth Proportional to 305,887.44, 422,192.10 and 169,968.06

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Solution

The fourth proportional to 305,887.44, 422,192.10 and 169,968.06 is: 234,593.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,887.44 : 422,192.10 = 169,968.06 : x
  2. Step 2: Convert to fraction form
    305,887.44/422,192.10 = 169,968.06/x
  3. Step 3: Cross multiply
    305,887.44x = 422,192.10 × 169,968.06
  4. Step 4: Simplify right side
    305,887.44x = 71,759,172,184.33
  5. Step 5: Solve for x
    x = 71,759,172,184.33/305,887.44
  6. Step 6: Final answer
    x = 234,593.39

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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.