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Finding the Fourth Proportional to 123,335.80, 184,971.28 and 53,199.52

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Solution

The fourth proportional to 123,335.80, 184,971.28 and 53,199.52 is: 79,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,335.80 : 184,971.28 = 53,199.52 : x
  2. Step 2: Convert to fraction form
    123,335.80/184,971.28 = 53,199.52/x
  3. Step 3: Cross multiply
    123,335.80x = 184,971.28 × 53,199.52
  4. Step 4: Simplify right side
    123,335.80x = 9,840,383,309.79
  5. Step 5: Solve for x
    x = 9,840,383,309.79/123,335.80
  6. Step 6: Final answer
    x = 79,785.30

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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.