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Finding the Fourth Proportional to 122,963.70, 184,445.55 and 73,197.30

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Solution

The fourth proportional to 122,963.70, 184,445.55 and 73,197.30 is: 109,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,963.70 : 184,445.55 = 73,197.30 : x
  2. Step 2: Convert to fraction form
    122,963.70/184,445.55 = 73,197.30/x
  3. Step 3: Cross multiply
    122,963.70x = 184,445.55 × 73,197.30
  4. Step 4: Simplify right side
    122,963.70x = 13,500,916,257.02
  5. Step 5: Solve for x
    x = 13,500,916,257.02/122,963.70
  6. Step 6: Final answer
    x = 109,795.95

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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.