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Finding the Fourth Proportional to 378,359.69, 567,537.49 and 162,186.59

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Solution

The fourth proportional to 378,359.69, 567,537.49 and 162,186.59 is: 243,279.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,359.69 : 567,537.49 = 162,186.59 : x
  2. Step 2: Convert to fraction form
    378,359.69/567,537.49 = 162,186.59/x
  3. Step 3: Cross multiply
    378,359.69x = 567,537.49 × 162,186.59
  4. Step 4: Simplify right side
    378,359.69x = 92,046,971,213.64
  5. Step 5: Solve for x
    x = 92,046,971,213.64/378,359.69
  6. Step 6: Final answer
    x = 243,279.01

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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.