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Finding the Fourth Proportional to 378,287.64, 567,566.97 and 162,055.67

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Solution

The fourth proportional to 378,287.64, 567,566.97 and 162,055.67 is: 243,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,287.64 : 567,566.97 = 162,055.67 : x
  2. Step 2: Convert to fraction form
    378,287.64/567,566.97 = 162,055.67/x
  3. Step 3: Cross multiply
    378,287.64x = 567,566.97 × 162,055.67
  4. Step 4: Simplify right side
    378,287.64x = 91,977,442,755.39
  5. Step 5: Solve for x
    x = 91,977,442,755.39/378,287.64
  6. Step 6: Final answer
    x = 243,141.55

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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.