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Finding the Fourth Proportional to 84,618.66, 116,769.12 and 46,371.30

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Solution

The fourth proportional to 84,618.66, 116,769.12 and 46,371.30 is: 63,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,618.66 : 116,769.12 = 46,371.30 : x
  2. Step 2: Convert to fraction form
    84,618.66/116,769.12 = 46,371.30/x
  3. Step 3: Cross multiply
    84,618.66x = 116,769.12 × 46,371.30
  4. Step 4: Simplify right side
    84,618.66x = 5,414,735,894.26
  5. Step 5: Solve for x
    x = 5,414,735,894.26/84,618.66
  6. Step 6: Final answer
    x = 63,989.86

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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.