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Finding the Fourth Proportional to 111,207.44, 166,811.72 and 28,101.52

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Solution

The fourth proportional to 111,207.44, 166,811.72 and 28,101.52 is: 42,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,207.44 : 166,811.72 = 28,101.52 : x
  2. Step 2: Convert to fraction form
    111,207.44/166,811.72 = 28,101.52/x
  3. Step 3: Cross multiply
    111,207.44x = 166,811.72 × 28,101.52
  4. Step 4: Simplify right side
    111,207.44x = 4,687,662,885.81
  5. Step 5: Solve for x
    x = 4,687,662,885.81/111,207.44
  6. Step 6: Final answer
    x = 42,152.42

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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.