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Finding the Fourth Proportional to 110,679.60, 166,019.40 and 48,471.60

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Solution

The fourth proportional to 110,679.60, 166,019.40 and 48,471.60 is: 72,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,679.60 : 166,019.40 = 48,471.60 : x
  2. Step 2: Convert to fraction form
    110,679.60/166,019.40 = 48,471.60/x
  3. Step 3: Cross multiply
    110,679.60x = 166,019.40 × 48,471.60
  4. Step 4: Simplify right side
    110,679.60x = 8,047,225,949.04
  5. Step 5: Solve for x
    x = 8,047,225,949.04/110,679.60
  6. Step 6: Final answer
    x = 72,707.40

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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.