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Finding the Fourth Proportional to 291,445.92, 437,227.82 and 122,966.67

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Solution

The fourth proportional to 291,445.92, 437,227.82 and 122,966.67 is: 184,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,445.92 : 437,227.82 = 122,966.67 : x
  2. Step 2: Convert to fraction form
    291,445.92/437,227.82 = 122,966.67/x
  3. Step 3: Cross multiply
    291,445.92x = 437,227.82 × 122,966.67
  4. Step 4: Simplify right side
    291,445.92x = 53,764,449,056.76
  5. Step 5: Solve for x
    x = 53,764,449,056.76/291,445.92
  6. Step 6: Final answer
    x = 184,474.87

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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.