Home / 207,561.18-311,368.77-74,456.04

Finding the Fourth Proportional to 207,561.18, 311,368.77 and 74,456.04

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Solution

The fourth proportional to 207,561.18, 311,368.77 and 74,456.04 is: 111,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,561.18 : 311,368.77 = 74,456.04 : x
  2. Step 2: Convert to fraction form
    207,561.18/311,368.77 = 74,456.04/x
  3. Step 3: Cross multiply
    207,561.18x = 311,368.77 × 74,456.04
  4. Step 4: Simplify right side
    207,561.18x = 23,183,285,593.87
  5. Step 5: Solve for x
    x = 23,183,285,593.87/207,561.18
  6. Step 6: Final answer
    x = 111,693.75

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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.