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Finding the Fourth Proportional to 203,473.15, 305,273.24 and 122,508.92

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Solution

The fourth proportional to 203,473.15, 305,273.24 and 122,508.92 is: 183,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,473.15 : 305,273.24 = 122,508.92 : x
  2. Step 2: Convert to fraction form
    203,473.15/305,273.24 = 122,508.92/x
  3. Step 3: Cross multiply
    203,473.15x = 305,273.24 × 122,508.92
  4. Step 4: Simplify right side
    203,473.15x = 37,398,695,547.35
  5. Step 5: Solve for x
    x = 37,398,695,547.35/203,473.15
  6. Step 6: Final answer
    x = 183,801.63

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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.