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Finding the Fourth Proportional to 239,056.75, 329,898.32 and 133,072.75

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Solution

The fourth proportional to 239,056.75, 329,898.32 and 133,072.75 is: 183,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,056.75 : 329,898.32 = 133,072.75 : x
  2. Step 2: Convert to fraction form
    239,056.75/329,898.32 = 133,072.75/x
  3. Step 3: Cross multiply
    239,056.75x = 329,898.32 × 133,072.75
  4. Step 4: Simplify right side
    239,056.75x = 43,900,476,662.78
  5. Step 5: Solve for x
    x = 43,900,476,662.78/239,056.75
  6. Step 6: Final answer
    x = 183,640.40

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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.