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Finding the Fourth Proportional to 311,118.88, 466,859.56 and 131,193.28

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Solution

The fourth proportional to 311,118.88, 466,859.56 and 131,193.28 is: 196,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,118.88 : 466,859.56 = 131,193.28 : x
  2. Step 2: Convert to fraction form
    311,118.88/466,859.56 = 131,193.28/x
  3. Step 3: Cross multiply
    311,118.88x = 466,859.56 × 131,193.28
  4. Step 4: Simplify right side
    311,118.88x = 61,248,836,975.76
  5. Step 5: Solve for x
    x = 61,248,836,975.76/311,118.88
  6. Step 6: Final answer
    x = 196,866.35

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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.