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Finding the Fourth Proportional to 291,251.88, 437,047.68 and 122,761.92

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Solution

The fourth proportional to 291,251.88, 437,047.68 and 122,761.92 is: 184,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,251.88 : 437,047.68 = 122,761.92 : x
  2. Step 2: Convert to fraction form
    291,251.88/437,047.68 = 122,761.92/x
  3. Step 3: Cross multiply
    291,251.88x = 437,047.68 × 122,761.92
  4. Step 4: Simplify right side
    291,251.88x = 53,652,812,328.35
  5. Step 5: Solve for x
    x = 53,652,812,328.35/291,251.88
  6. Step 6: Final answer
    x = 184,214.48

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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.