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Finding the Fourth Proportional to 84,660, 116,831.61 and 46,935.06

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Solution

The fourth proportional to 84,660, 116,831.61 and 46,935.06 is: 64,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660 : 116,831.61 = 46,935.06 : x
  2. Step 2: Convert to fraction form
    84,660/116,831.61 = 46,935.06/x
  3. Step 3: Cross multiply
    84,660x = 116,831.61 × 46,935.06
  4. Step 4: Simplify right side
    84,660x = 5,483,498,625.25
  5. Step 5: Solve for x
    x = 5,483,498,625.25/84,660
  6. Step 6: Final answer
    x = 64,770.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.