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Finding the Fourth Proportional to 203,362.40, 305,061.24 and 53,601.68

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Solution

The fourth proportional to 203,362.40, 305,061.24 and 53,601.68 is: 80,407.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,362.40 : 305,061.24 = 53,601.68 : x
  2. Step 2: Convert to fraction form
    203,362.40/305,061.24 = 53,601.68/x
  3. Step 3: Cross multiply
    203,362.40x = 305,061.24 × 53,601.68
  4. Step 4: Simplify right side
    203,362.40x = 16,351,794,966.88
  5. Step 5: Solve for x
    x = 16,351,794,966.88/203,362.40
  6. Step 6: Final answer
    x = 80,407.17

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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.