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Finding the Fourth Proportional to 291,442.92, 437,223.32 and 122,963.67

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Solution

The fourth proportional to 291,442.92, 437,223.32 and 122,963.67 is: 184,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,442.92 : 437,223.32 = 122,963.67 : x
  2. Step 2: Convert to fraction form
    291,442.92/437,223.32 = 122,963.67/x
  3. Step 3: Cross multiply
    291,442.92x = 437,223.32 × 122,963.67
  4. Step 4: Simplify right side
    291,442.92x = 53,762,581,235.85
  5. Step 5: Solve for x
    x = 53,762,581,235.85/291,442.92
  6. Step 6: Final answer
    x = 184,470.36

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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.