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Finding the Fourth Proportional to 322,937.40, 484,233.30 and 135,737.40

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Solution

The fourth proportional to 322,937.40, 484,233.30 and 135,737.40 is: 203,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,937.40 : 484,233.30 = 135,737.40 : x
  2. Step 2: Convert to fraction form
    322,937.40/484,233.30 = 135,737.40/x
  3. Step 3: Cross multiply
    322,937.40x = 484,233.30 × 135,737.40
  4. Step 4: Simplify right side
    322,937.40x = 65,728,569,135.42
  5. Step 5: Solve for x
    x = 65,728,569,135.42/322,937.40
  6. Step 6: Final answer
    x = 203,533.47

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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.