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Finding the Fourth Proportional to 215,192.25, 322,840.22 and 67,448.25

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Solution

The fourth proportional to 215,192.25, 322,840.22 and 67,448.25 is: 101,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,192.25 : 322,840.22 = 67,448.25 : x
  2. Step 2: Convert to fraction form
    215,192.25/322,840.22 = 67,448.25/x
  3. Step 3: Cross multiply
    215,192.25x = 322,840.22 × 67,448.25
  4. Step 4: Simplify right side
    215,192.25x = 21,775,007,531.37
  5. Step 5: Solve for x
    x = 21,775,007,531.37/215,192.25
  6. Step 6: Final answer
    x = 101,188.62

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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.