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Finding the Fourth Proportional to 378,516.59, 567,831.75 and 122,263.59

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Solution

The fourth proportional to 378,516.59, 567,831.75 and 122,263.59 is: 183,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,516.59 : 567,831.75 = 122,263.59 : x
  2. Step 2: Convert to fraction form
    378,516.59/567,831.75 = 122,263.59/x
  3. Step 3: Cross multiply
    378,516.59x = 567,831.75 × 122,263.59
  4. Step 4: Simplify right side
    378,516.59x = 69,425,147,659.66
  5. Step 5: Solve for x
    x = 69,425,147,659.66/378,516.59
  6. Step 6: Final answer
    x = 183,413.75

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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.