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Finding the Fourth Proportional to 291,353.70, 437,092.92 and 165,053.64

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Solution

The fourth proportional to 291,353.70, 437,092.92 and 165,053.64 is: 247,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,353.70 : 437,092.92 = 165,053.64 : x
  2. Step 2: Convert to fraction form
    291,353.70/437,092.92 = 165,053.64/x
  3. Step 3: Cross multiply
    291,353.70x = 437,092.92 × 165,053.64
  4. Step 4: Simplify right side
    291,353.70x = 72,143,777,464.23
  5. Step 5: Solve for x
    x = 72,143,777,464.23/291,353.70
  6. Step 6: Final answer
    x = 247,615.79

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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.