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Finding the Fourth Proportional to 226,372.84, 339,555.42 and 78,625

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Solution

The fourth proportional to 226,372.84, 339,555.42 and 78,625 is: 117,936.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,372.84 : 339,555.42 = 78,625 : x
  2. Step 2: Convert to fraction form
    226,372.84/339,555.42 = 78,625/x
  3. Step 3: Cross multiply
    226,372.84x = 339,555.42 × 78,625
  4. Step 4: Simplify right side
    226,372.84x = 26,697,544,897.50
  5. Step 5: Solve for x
    x = 26,697,544,897.50/226,372.84
  6. Step 6: Final answer
    x = 117,936.17

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1.5x scale

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.