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Finding the Fourth Proportional to 216,760.44, 325,107.12 and 83,621.28

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Solution

The fourth proportional to 216,760.44, 325,107.12 and 83,621.28 is: 125,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,760.44 : 325,107.12 = 83,621.28 : x
  2. Step 2: Convert to fraction form
    216,760.44/325,107.12 = 83,621.28/x
  3. Step 3: Cross multiply
    216,760.44x = 325,107.12 × 83,621.28
  4. Step 4: Simplify right side
    216,760.44x = 27,185,873,511.51
  5. Step 5: Solve for x
    x = 27,185,873,511.51/216,760.44
  6. Step 6: Final answer
    x = 125,418.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.