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Finding the Fourth Proportional to 110,912.40, 166,368.60 and 107,996.40

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Solution

The fourth proportional to 110,912.40, 166,368.60 and 107,996.40 is: 161,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,912.40 : 166,368.60 = 107,996.40 : x
  2. Step 2: Convert to fraction form
    110,912.40/166,368.60 = 107,996.40/x
  3. Step 3: Cross multiply
    110,912.40x = 166,368.60 × 107,996.40
  4. Step 4: Simplify right side
    110,912.40x = 17,967,209,873.04
  5. Step 5: Solve for x
    x = 17,967,209,873.04/110,912.40
  6. Step 6: Final answer
    x = 161,994.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.