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Finding the Fourth Proportional to 122,847.62, 184,264.13 and 72,275.09

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Solution

The fourth proportional to 122,847.62, 184,264.13 and 72,275.09 is: 108,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,847.62 : 184,264.13 = 72,275.09 : x
  2. Step 2: Convert to fraction form
    122,847.62/184,264.13 = 72,275.09/x
  3. Step 3: Cross multiply
    122,847.62x = 184,264.13 × 72,275.09
  4. Step 4: Simplify right side
    122,847.62x = 13,317,705,838.89
  5. Step 5: Solve for x
    x = 13,317,705,838.89/122,847.62
  6. Step 6: Final answer
    x = 108,408.34

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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.