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Finding the Fourth Proportional to 84,622, 116,778.36 and 46,898.68

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Solution

The fourth proportional to 84,622, 116,778.36 and 46,898.68 is: 64,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,622 : 116,778.36 = 46,898.68 : x
  2. Step 2: Convert to fraction form
    84,622/116,778.36 = 46,898.68/x
  3. Step 3: Cross multiply
    84,622x = 116,778.36 × 46,898.68
  4. Step 4: Simplify right side
    84,622x = 5,476,750,936.56
  5. Step 5: Solve for x
    x = 5,476,750,936.56/84,622
  6. Step 6: Final answer
    x = 64,720.18

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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.