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Finding the Fourth Proportional to 61,200.39, 91,800.59 and 16,831.83

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Solution

The fourth proportional to 61,200.39, 91,800.59 and 16,831.83 is: 25,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,200.39 : 91,800.59 = 16,831.83 : x
  2. Step 2: Convert to fraction form
    61,200.39/91,800.59 = 16,831.83/x
  3. Step 3: Cross multiply
    61,200.39x = 91,800.59 × 16,831.83
  4. Step 4: Simplify right side
    61,200.39x = 1,545,171,840.62
  5. Step 5: Solve for x
    x = 1,545,171,840.62/61,200.39
  6. Step 6: Final answer
    x = 25,247.75

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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.