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Finding the Fourth Proportional to 185,663.68, 278,440.94 and 79,046.42

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Solution

The fourth proportional to 185,663.68, 278,440.94 and 79,046.42 is: 118,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,663.68 : 278,440.94 = 79,046.42 : x
  2. Step 2: Convert to fraction form
    185,663.68/278,440.94 = 79,046.42/x
  3. Step 3: Cross multiply
    185,663.68x = 278,440.94 × 79,046.42
  4. Step 4: Simplify right side
    185,663.68x = 22,009,758,293.85
  5. Step 5: Solve for x
    x = 22,009,758,293.85/185,663.68
  6. Step 6: Final answer
    x = 118,546.39

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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.