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Finding the Fourth Proportional to 110,680.60, 166,020.90 and 48,472.60

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Solution

The fourth proportional to 110,680.60, 166,020.90 and 48,472.60 is: 72,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,680.60 : 166,020.90 = 48,472.60 : x
  2. Step 2: Convert to fraction form
    110,680.60/166,020.90 = 48,472.60/x
  3. Step 3: Cross multiply
    110,680.60x = 166,020.90 × 48,472.60
  4. Step 4: Simplify right side
    110,680.60x = 8,047,464,677.34
  5. Step 5: Solve for x
    x = 8,047,464,677.34/110,680.60
  6. Step 6: Final answer
    x = 72,708.90

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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.