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Finding the Fourth Proportional to 84,086.90, 116,039.73 and 46,361.78

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Solution

The fourth proportional to 84,086.90, 116,039.73 and 46,361.78 is: 63,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,086.90 : 116,039.73 = 46,361.78 : x
  2. Step 2: Convert to fraction form
    84,086.90/116,039.73 = 46,361.78/x
  3. Step 3: Cross multiply
    84,086.90x = 116,039.73 × 46,361.78
  4. Step 4: Simplify right side
    84,086.90x = 5,379,808,433.52
  5. Step 5: Solve for x
    x = 5,379,808,433.52/84,086.90
  6. Step 6: Final answer
    x = 63,979.15

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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.