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Finding the Fourth Proportional to 120,635.54, 166,463.62 and 66,907.10

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Solution

The fourth proportional to 120,635.54, 166,463.62 and 66,907.10 is: 92,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,635.54 : 166,463.62 = 66,907.10 : x
  2. Step 2: Convert to fraction form
    120,635.54/166,463.62 = 66,907.10/x
  3. Step 3: Cross multiply
    120,635.54x = 166,463.62 × 66,907.10
  4. Step 4: Simplify right side
    120,635.54x = 11,137,598,069.70
  5. Step 5: Solve for x
    x = 11,137,598,069.70/120,635.54
  6. Step 6: Final answer
    x = 92,324.35

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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.