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Finding the Fourth Proportional to 80,212.97, 110,691.41 and 46,220.51

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Solution

The fourth proportional to 80,212.97, 110,691.41 and 46,220.51 is: 63,782.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.97 : 110,691.41 = 46,220.51 : x
  2. Step 2: Convert to fraction form
    80,212.97/110,691.41 = 46,220.51/x
  3. Step 3: Cross multiply
    80,212.97x = 110,691.41 × 46,220.51
  4. Step 4: Simplify right side
    80,212.97x = 5,116,212,638.26
  5. Step 5: Solve for x
    x = 5,116,212,638.26/80,212.97
  6. Step 6: Final answer
    x = 63,782.86

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1.5x scale

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.