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Finding the Fourth Proportional to 351,442.53, 527,054.58 and 126,773.78

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Solution

The fourth proportional to 351,442.53, 527,054.58 and 126,773.78 is: 190,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,442.53 : 527,054.58 = 126,773.78 : x
  2. Step 2: Convert to fraction form
    351,442.53/527,054.58 = 126,773.78/x
  3. Step 3: Cross multiply
    351,442.53x = 527,054.58 × 126,773.78
  4. Step 4: Simplify right side
    351,442.53x = 66,816,698,737.64
  5. Step 5: Solve for x
    x = 66,816,698,737.64/351,442.53
  6. Step 6: Final answer
    x = 190,121.27

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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.