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Finding the Fourth Proportional to 188,267.70, 281,047.16 and 161,323.58

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Solution

The fourth proportional to 188,267.70, 281,047.16 and 161,323.58 is: 240,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,267.70 : 281,047.16 = 161,323.58 : x
  2. Step 2: Convert to fraction form
    188,267.70/281,047.16 = 161,323.58/x
  3. Step 3: Cross multiply
    188,267.70x = 281,047.16 × 161,323.58
  4. Step 4: Simplify right side
    188,267.70x = 45,339,534,000.03
  5. Step 5: Solve for x
    x = 45,339,534,000.03/188,267.70
  6. Step 6: Final answer
    x = 240,824.81

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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.