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Finding the Fourth Proportional to 188,388.72, 281,363.66 and 170,583.80

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Solution

The fourth proportional to 188,388.72, 281,363.66 and 170,583.80 is: 254,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,388.72 : 281,363.66 = 170,583.80 : x
  2. Step 2: Convert to fraction form
    188,388.72/281,363.66 = 170,583.80/x
  3. Step 3: Cross multiply
    188,388.72x = 281,363.66 × 170,583.80
  4. Step 4: Simplify right side
    188,388.72x = 47,996,082,304.71
  5. Step 5: Solve for x
    x = 47,996,082,304.71/188,388.72
  6. Step 6: Final answer
    x = 254,771.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.