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Finding the Fourth Proportional to 203,019.66, 304,520.49 and 53,256.54

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Solution

The fourth proportional to 203,019.66, 304,520.49 and 53,256.54 is: 79,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,019.66 : 304,520.49 = 53,256.54 : x
  2. Step 2: Convert to fraction form
    203,019.66/304,520.49 = 53,256.54/x
  3. Step 3: Cross multiply
    203,019.66x = 304,520.49 × 53,256.54
  4. Step 4: Simplify right side
    203,019.66x = 16,217,707,656.50
  5. Step 5: Solve for x
    x = 16,217,707,656.50/203,019.66
  6. Step 6: Final answer
    x = 79,882.45

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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.