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Finding the Fourth Proportional to 202,871.31, 304,334.64 and 84,514.95

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Solution

The fourth proportional to 202,871.31, 304,334.64 and 84,514.95 is: 126,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,871.31 : 304,334.64 = 84,514.95 : x
  2. Step 2: Convert to fraction form
    202,871.31/304,334.64 = 84,514.95/x
  3. Step 3: Cross multiply
    202,871.31x = 304,334.64 × 84,514.95
  4. Step 4: Simplify right side
    202,871.31x = 25,720,826,882.87
  5. Step 5: Solve for x
    x = 25,720,826,882.87/202,871.31
  6. Step 6: Final answer
    x = 126,783.95

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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.