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Finding the Fourth Proportional to 378,881.82, 567,922.86 and 126,094.32

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Solution

The fourth proportional to 378,881.82, 567,922.86 and 126,094.32 is: 189,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,881.82 : 567,922.86 = 126,094.32 : x
  2. Step 2: Convert to fraction form
    378,881.82/567,922.86 = 126,094.32/x
  3. Step 3: Cross multiply
    378,881.82x = 567,922.86 × 126,094.32
  4. Step 4: Simplify right side
    378,881.82x = 71,611,846,844.16
  5. Step 5: Solve for x
    x = 71,611,846,844.16/378,881.82
  6. Step 6: Final answer
    x = 189,008.40

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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.