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Finding the Fourth Proportional to 251,048.62, 346,446.69 and 137,871.37

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Solution

The fourth proportional to 251,048.62, 346,446.69 and 137,871.37 is: 190,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,048.62 : 346,446.69 = 137,871.37 : x
  2. Step 2: Convert to fraction form
    251,048.62/346,446.69 = 137,871.37/x
  3. Step 3: Cross multiply
    251,048.62x = 346,446.69 × 137,871.37
  4. Step 4: Simplify right side
    251,048.62x = 47,765,077,749.54
  5. Step 5: Solve for x
    x = 47,765,077,749.54/251,048.62
  6. Step 6: Final answer
    x = 190,262.26

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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.