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Finding the Fourth Proportional to 68,244.40, 94,492.20 and 66,494.80

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Solution

The fourth proportional to 68,244.40, 94,492.20 and 66,494.80 is: 92,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,244.40 : 94,492.20 = 66,494.80 : x
  2. Step 2: Convert to fraction form
    68,244.40/94,492.20 = 66,494.80/x
  3. Step 3: Cross multiply
    68,244.40x = 94,492.20 × 66,494.80
  4. Step 4: Simplify right side
    68,244.40x = 6,283,239,940.56
  5. Step 5: Solve for x
    x = 6,283,239,940.56/68,244.40
  6. Step 6: Final answer
    x = 92,069.68

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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.