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Finding the Fourth Proportional to 351,796.80, 527,751.24 and 127,134.48

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Solution

The fourth proportional to 351,796.80, 527,751.24 and 127,134.48 is: 190,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,796.80 : 527,751.24 = 127,134.48 : x
  2. Step 2: Convert to fraction form
    351,796.80/527,751.24 = 127,134.48/x
  3. Step 3: Cross multiply
    351,796.80x = 527,751.24 × 127,134.48
  4. Step 4: Simplify right side
    351,796.80x = 67,095,379,466.76
  5. Step 5: Solve for x
    x = 67,095,379,466.76/351,796.80
  6. Step 6: Final answer
    x = 190,721.97

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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.