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Finding the Fourth Proportional to 111,636.60, 167,438.70 and 32,742.60

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Solution

The fourth proportional to 111,636.60, 167,438.70 and 32,742.60 is: 49,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,636.60 : 167,438.70 = 32,742.60 : x
  2. Step 2: Convert to fraction form
    111,636.60/167,438.70 = 32,742.60/x
  3. Step 3: Cross multiply
    111,636.60x = 167,438.70 × 32,742.60
  4. Step 4: Simplify right side
    111,636.60x = 5,482,378,378.62
  5. Step 5: Solve for x
    x = 5,482,378,378.62/111,636.60
  6. Step 6: Final answer
    x = 49,109.15

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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.