Home / 279,412.16-419,188.97-79,733.25

Finding the Fourth Proportional to 279,412.16, 419,188.97 and 79,733.25

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Solution

The fourth proportional to 279,412.16, 419,188.97 and 79,733.25 is: 119,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,412.16 : 419,188.97 = 79,733.25 : x
  2. Step 2: Convert to fraction form
    279,412.16/419,188.97 = 79,733.25/x
  3. Step 3: Cross multiply
    279,412.16x = 419,188.97 × 79,733.25
  4. Step 4: Simplify right side
    279,412.16x = 33,423,299,141.59
  5. Step 5: Solve for x
    x = 33,423,299,141.59/279,412.16
  6. Step 6: Final answer
    x = 119,620.06

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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.