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Finding the Fourth Proportional to 378,592.22, 567,488.28 and 165,173.21

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Solution

The fourth proportional to 378,592.22, 567,488.28 and 165,173.21 is: 247,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,592.22 : 567,488.28 = 165,173.21 : x
  2. Step 2: Convert to fraction form
    378,592.22/567,488.28 = 165,173.21/x
  3. Step 3: Cross multiply
    378,592.22x = 567,488.28 × 165,173.21
  4. Step 4: Simplify right side
    378,592.22x = 93,733,860,844.98
  5. Step 5: Solve for x
    x = 93,733,860,844.98/378,592.22
  6. Step 6: Final answer
    x = 247,585.28

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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.