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Finding the Fourth Proportional to 123,016.80, 184,525.20 and 60,808.80

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Solution

The fourth proportional to 123,016.80, 184,525.20 and 60,808.80 is: 91,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,016.80 : 184,525.20 = 60,808.80 : x
  2. Step 2: Convert to fraction form
    123,016.80/184,525.20 = 60,808.80/x
  3. Step 3: Cross multiply
    123,016.80x = 184,525.20 × 60,808.80
  4. Step 4: Simplify right side
    123,016.80x = 11,220,755,981.76
  5. Step 5: Solve for x
    x = 11,220,755,981.76/123,016.80
  6. Step 6: Final answer
    x = 91,213.20

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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.