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Finding the Fourth Proportional to 203,391.90, 305,084.58 and 63,150.66

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Solution

The fourth proportional to 203,391.90, 305,084.58 and 63,150.66 is: 94,724.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,391.90 : 305,084.58 = 63,150.66 : x
  2. Step 2: Convert to fraction form
    203,391.90/305,084.58 = 63,150.66/x
  3. Step 3: Cross multiply
    203,391.90x = 305,084.58 × 63,150.66
  4. Step 4: Simplify right side
    203,391.90x = 19,266,292,582.82
  5. Step 5: Solve for x
    x = 19,266,292,582.82/203,391.90
  6. Step 6: Final answer
    x = 94,724.97

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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.