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Finding the Fourth Proportional to 122,710.79, 184,007.25 and 72,797.37

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Solution

The fourth proportional to 122,710.79, 184,007.25 and 72,797.37 is: 109,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,710.79 : 184,007.25 = 72,797.37 : x
  2. Step 2: Convert to fraction form
    122,710.79/184,007.25 = 72,797.37/x
  3. Step 3: Cross multiply
    122,710.79x = 184,007.25 × 72,797.37
  4. Step 4: Simplify right side
    122,710.79x = 13,395,243,860.93
  5. Step 5: Solve for x
    x = 13,395,243,860.93/122,710.79
  6. Step 6: Final answer
    x = 109,161.10

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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.