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Finding the Fourth Proportional to 239,768.50, 330,880.53 and 133,784.50

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Solution

The fourth proportional to 239,768.50, 330,880.53 and 133,784.50 is: 184,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,768.50 : 330,880.53 = 133,784.50 : x
  2. Step 2: Convert to fraction form
    239,768.50/330,880.53 = 133,784.50/x
  3. Step 3: Cross multiply
    239,768.50x = 330,880.53 × 133,784.50
  4. Step 4: Simplify right side
    239,768.50x = 44,266,686,265.79
  5. Step 5: Solve for x
    x = 44,266,686,265.79/239,768.50
  6. Step 6: Final answer
    x = 184,622.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.