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Finding the Fourth Proportional to 122,849.62, 184,266.93 and 72,276.64

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Solution

The fourth proportional to 122,849.62, 184,266.93 and 72,276.64 is: 108,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,849.62 : 184,266.93 = 72,276.64 : x
  2. Step 2: Convert to fraction form
    122,849.62/184,266.93 = 72,276.64/x
  3. Step 3: Cross multiply
    122,849.62x = 184,266.93 × 72,276.64
  4. Step 4: Simplify right side
    122,849.62x = 13,318,194,563.52
  5. Step 5: Solve for x
    x = 13,318,194,563.52/122,849.62
  6. Step 6: Final answer
    x = 108,410.55

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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.