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Finding the Fourth Proportional to 291,796.76, 437,741.80 and 123,318.72

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Solution

The fourth proportional to 291,796.76, 437,741.80 and 123,318.72 is: 184,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,796.76 : 437,741.80 = 123,318.72 : x
  2. Step 2: Convert to fraction form
    291,796.76/437,741.80 = 123,318.72/x
  3. Step 3: Cross multiply
    291,796.76x = 437,741.80 × 123,318.72
  4. Step 4: Simplify right side
    291,796.76x = 53,981,758,466.50
  5. Step 5: Solve for x
    x = 53,981,758,466.50/291,796.76
  6. Step 6: Final answer
    x = 184,997.80

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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.