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Finding the Fourth Proportional to 111,123.20, 166,684.80 and 32,245.40

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Solution

The fourth proportional to 111,123.20, 166,684.80 and 32,245.40 is: 48,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,123.20 : 166,684.80 = 32,245.40 : x
  2. Step 2: Convert to fraction form
    111,123.20/166,684.80 = 32,245.40/x
  3. Step 3: Cross multiply
    111,123.20x = 166,684.80 × 32,245.40
  4. Step 4: Simplify right side
    111,123.20x = 5,374,818,049.92
  5. Step 5: Solve for x
    x = 5,374,818,049.92/111,123.20
  6. Step 6: Final answer
    x = 48,368.10

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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.