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Finding the Fourth Proportional to 378,042.24, 567,174.24 and 111,809.76

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Solution

The fourth proportional to 378,042.24, 567,174.24 and 111,809.76 is: 167,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,042.24 : 567,174.24 = 111,809.76 : x
  2. Step 2: Convert to fraction form
    378,042.24/567,174.24 = 111,809.76/x
  3. Step 3: Cross multiply
    378,042.24x = 567,174.24 × 111,809.76
  4. Step 4: Simplify right side
    378,042.24x = 63,415,615,652.58
  5. Step 5: Solve for x
    x = 63,415,615,652.58/378,042.24
  6. Step 6: Final answer
    x = 167,747.43

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1.5x scale

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.