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Finding the Fourth Proportional to 212,996.14, 319,439.50 and 63,201

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Solution

The fourth proportional to 212,996.14, 319,439.50 and 63,201 is: 94,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,996.14 : 319,439.50 = 63,201 : x
  2. Step 2: Convert to fraction form
    212,996.14/319,439.50 = 63,201/x
  3. Step 3: Cross multiply
    212,996.14x = 319,439.50 × 63,201
  4. Step 4: Simplify right side
    212,996.14x = 20,188,895,839.50
  5. Step 5: Solve for x
    x = 20,188,895,839.50/212,996.14
  6. Step 6: Final answer
    x = 94,785.27

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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.