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Finding the Fourth Proportional to 68,194.98, 94,111.99 and 37,980.30

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Solution

The fourth proportional to 68,194.98, 94,111.99 and 37,980.30 is: 52,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,194.98 : 94,111.99 = 37,980.30 : x
  2. Step 2: Convert to fraction form
    68,194.98/94,111.99 = 37,980.30/x
  3. Step 3: Cross multiply
    68,194.98x = 94,111.99 × 37,980.30
  4. Step 4: Simplify right side
    68,194.98x = 3,574,401,613.80
  5. Step 5: Solve for x
    x = 3,574,401,613.80/68,194.98
  6. Step 6: Final answer
    x = 52,414.44

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Double scale
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Similar ratio
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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.