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Finding the Fourth Proportional to 378,291.64, 567,572.98 and 162,059.66

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Solution

The fourth proportional to 378,291.64, 567,572.98 and 162,059.66 is: 243,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,291.64 : 567,572.98 = 162,059.66 : x
  2. Step 2: Convert to fraction form
    378,291.64/567,572.98 = 162,059.66/x
  3. Step 3: Cross multiply
    378,291.64x = 567,572.98 × 162,059.66
  4. Step 4: Simplify right side
    378,291.64x = 91,980,684,163.99
  5. Step 5: Solve for x
    x = 91,980,684,163.99/378,291.64
  6. Step 6: Final answer
    x = 243,147.55

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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.