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Finding the Fourth Proportional to 123,855.53, 170,914.25 and 67,266.77

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Solution

The fourth proportional to 123,855.53, 170,914.25 and 67,266.77 is: 92,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,855.53 : 170,914.25 = 67,266.77 : x
  2. Step 2: Convert to fraction form
    123,855.53/170,914.25 = 67,266.77/x
  3. Step 3: Cross multiply
    123,855.53x = 170,914.25 × 67,266.77
  4. Step 4: Simplify right side
    123,855.53x = 11,496,848,858.07
  5. Step 5: Solve for x
    x = 11,496,848,858.07/123,855.53
  6. Step 6: Final answer
    x = 92,824.68

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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.