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Finding the Fourth Proportional to 122,804.16, 184,206.24 and 81,241.44

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Solution

The fourth proportional to 122,804.16, 184,206.24 and 81,241.44 is: 121,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,804.16 : 184,206.24 = 81,241.44 : x
  2. Step 2: Convert to fraction form
    122,804.16/184,206.24 = 81,241.44/x
  3. Step 3: Cross multiply
    122,804.16x = 184,206.24 × 81,241.44
  4. Step 4: Simplify right side
    122,804.16x = 14,965,180,194.59
  5. Step 5: Solve for x
    x = 14,965,180,194.59/122,804.16
  6. Step 6: Final answer
    x = 121,862.16

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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.