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Finding the Fourth Proportional to 68,251.40, 94,245.12 and 42,800.60

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Solution

The fourth proportional to 68,251.40, 94,245.12 and 42,800.60 is: 59,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,251.40 : 94,245.12 = 42,800.60 : x
  2. Step 2: Convert to fraction form
    68,251.40/94,245.12 = 42,800.60/x
  3. Step 3: Cross multiply
    68,251.40x = 94,245.12 × 42,800.60
  4. Step 4: Simplify right side
    68,251.40x = 4,033,747,683.07
  5. Step 5: Solve for x
    x = 4,033,747,683.07/68,251.40
  6. Step 6: Final answer
    x = 59,101.32

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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.