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Finding the Fourth Proportional to 291,699.20, 437,610.72 and 92,077.28

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Solution

The fourth proportional to 291,699.20, 437,610.72 and 92,077.28 is: 138,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,699.20 : 437,610.72 = 92,077.28 : x
  2. Step 2: Convert to fraction form
    291,699.20/437,610.72 = 92,077.28/x
  3. Step 3: Cross multiply
    291,699.20x = 437,610.72 × 92,077.28
  4. Step 4: Simplify right side
    291,699.20x = 40,294,004,796.44
  5. Step 5: Solve for x
    x = 40,294,004,796.44/291,699.20
  6. Step 6: Final answer
    x = 138,135.47

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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.