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Finding the Fourth Proportional to 68,369.85, 94,355.15 and 38,161.08

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Solution

The fourth proportional to 68,369.85, 94,355.15 and 38,161.08 is: 52,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,369.85 : 94,355.15 = 38,161.08 : x
  2. Step 2: Convert to fraction form
    68,369.85/94,355.15 = 38,161.08/x
  3. Step 3: Cross multiply
    68,369.85x = 94,355.15 × 38,161.08
  4. Step 4: Simplify right side
    68,369.85x = 3,600,694,236.76
  5. Step 5: Solve for x
    x = 3,600,694,236.76/68,369.85
  6. Step 6: Final answer
    x = 52,664.94

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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.