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Finding the Fourth Proportional to 68,226.96, 94,146.96 and 39,934.80

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Solution

The fourth proportional to 68,226.96, 94,146.96 and 39,934.80 is: 55,106.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,226.96 : 94,146.96 = 39,934.80 : x
  2. Step 2: Convert to fraction form
    68,226.96/94,146.96 = 39,934.80/x
  3. Step 3: Cross multiply
    68,226.96x = 94,146.96 × 39,934.80
  4. Step 4: Simplify right side
    68,226.96x = 3,759,740,018.21
  5. Step 5: Solve for x
    x = 3,759,740,018.21/68,226.96
  6. Step 6: Final answer
    x = 55,106.37

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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.