Home / 294,540.15-441,801.41-81,321.09

Finding the Fourth Proportional to 294,540.15, 441,801.41 and 81,321.09

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Solution

The fourth proportional to 294,540.15, 441,801.41 and 81,321.09 is: 121,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,540.15 : 441,801.41 = 81,321.09 : x
  2. Step 2: Convert to fraction form
    294,540.15/441,801.41 = 81,321.09/x
  3. Step 3: Cross multiply
    294,540.15x = 441,801.41 × 81,321.09
  4. Step 4: Simplify right side
    294,540.15x = 35,927,771,818.13
  5. Step 5: Solve for x
    x = 35,927,771,818.13/294,540.15
  6. Step 6: Final answer
    x = 121,979.20

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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.