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Finding the Fourth Proportional to 170,736.70, 256,105.05 and 117,592.60

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Solution

The fourth proportional to 170,736.70, 256,105.05 and 117,592.60 is: 176,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,736.70 : 256,105.05 = 117,592.60 : x
  2. Step 2: Convert to fraction form
    170,736.70/256,105.05 = 117,592.60/x
  3. Step 3: Cross multiply
    170,736.70x = 256,105.05 × 117,592.60
  4. Step 4: Simplify right side
    170,736.70x = 30,116,058,702.63
  5. Step 5: Solve for x
    x = 30,116,058,702.63/170,736.70
  6. Step 6: Final answer
    x = 176,388.90

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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.