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Finding the Fourth Proportional to 221,265.50, 331,889.70 and 63,493.95

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Solution

The fourth proportional to 221,265.50, 331,889.70 and 63,493.95 is: 95,238.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,265.50 : 331,889.70 = 63,493.95 : x
  2. Step 2: Convert to fraction form
    221,265.50/331,889.70 = 63,493.95/x
  3. Step 3: Cross multiply
    221,265.50x = 331,889.70 × 63,493.95
  4. Step 4: Simplify right side
    221,265.50x = 21,072,988,017.32
  5. Step 5: Solve for x
    x = 21,072,988,017.32/221,265.50
  6. Step 6: Final answer
    x = 95,238.47

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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.