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Finding the Fourth Proportional to 279,443.80, 418,342.02 and 184,499.80

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Solution

The fourth proportional to 279,443.80, 418,342.02 and 184,499.80 is: 276,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,443.80 : 418,342.02 = 184,499.80 : x
  2. Step 2: Convert to fraction form
    279,443.80/418,342.02 = 184,499.80/x
  3. Step 3: Cross multiply
    279,443.80x = 418,342.02 × 184,499.80
  4. Step 4: Simplify right side
    279,443.80x = 77,184,019,021.60
  5. Step 5: Solve for x
    x = 77,184,019,021.60/279,443.80
  6. Step 6: Final answer
    x = 276,205.87

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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.