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Finding the Fourth Proportional to 212,996.87, 293,936.67 and 117,503.54

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Solution

The fourth proportional to 212,996.87, 293,936.67 and 117,503.54 is: 162,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,996.87 : 293,936.67 = 117,503.54 : x
  2. Step 2: Convert to fraction form
    212,996.87/293,936.67 = 117,503.54/x
  3. Step 3: Cross multiply
    212,996.87x = 293,936.67 × 117,503.54
  4. Step 4: Simplify right side
    212,996.87x = 34,538,597,791.13
  5. Step 5: Solve for x
    x = 34,538,597,791.13/212,996.87
  6. Step 6: Final answer
    x = 162,155.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.