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Finding the Fourth Proportional to 122,692, 184,081.20 and 60,406.24

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Solution

The fourth proportional to 122,692, 184,081.20 and 60,406.24 is: 90,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,692 : 184,081.20 = 60,406.24 : x
  2. Step 2: Convert to fraction form
    122,692/184,081.20 = 60,406.24/x
  3. Step 3: Cross multiply
    122,692x = 184,081.20 × 60,406.24
  4. Step 4: Simplify right side
    122,692x = 11,119,653,146.69
  5. Step 5: Solve for x
    x = 11,119,653,146.69/122,692
  6. Step 6: Final answer
    x = 90,630.63

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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.