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Finding the Fourth Proportional to 275,620.60, 413,406.60 and 75,923.20

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Solution

The fourth proportional to 275,620.60, 413,406.60 and 75,923.20 is: 113,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,620.60 : 413,406.60 = 75,923.20 : x
  2. Step 2: Convert to fraction form
    275,620.60/413,406.60 = 75,923.20/x
  3. Step 3: Cross multiply
    275,620.60x = 413,406.60 × 75,923.20
  4. Step 4: Simplify right side
    275,620.60x = 31,387,151,973.12
  5. Step 5: Solve for x
    x = 31,387,151,973.12/275,620.60
  6. Step 6: Final answer
    x = 113,878.11

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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.