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Finding the Fourth Proportional to 303,563.69, 455,294.34 and 111,398.37

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Solution

The fourth proportional to 303,563.69, 455,294.34 and 111,398.37 is: 167,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,563.69 : 455,294.34 = 111,398.37 : x
  2. Step 2: Convert to fraction form
    303,563.69/455,294.34 = 111,398.37/x
  3. Step 3: Cross multiply
    303,563.69x = 455,294.34 × 111,398.37
  4. Step 4: Simplify right side
    303,563.69x = 50,719,047,346.23
  5. Step 5: Solve for x
    x = 50,719,047,346.23/303,563.69
  6. Step 6: Final answer
    x = 167,078.77

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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.