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Finding the Fourth Proportional to 619,203.84, 928,806.57 and 169,930.86

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Solution

The fourth proportional to 619,203.84, 928,806.57 and 169,930.86 is: 254,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,203.84 : 928,806.57 = 169,930.86 : x
  2. Step 2: Convert to fraction form
    619,203.84/928,806.57 = 169,930.86/x
  3. Step 3: Cross multiply
    619,203.84x = 928,806.57 × 169,930.86
  4. Step 4: Simplify right side
    619,203.84x = 157,832,899,213.75
  5. Step 5: Solve for x
    x = 157,832,899,213.75/619,203.84
  6. Step 6: Final answer
    x = 254,896.51

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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.