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Finding the Fourth Proportional to 111,788.76, 167,683.26 and 28,682.76

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Solution

The fourth proportional to 111,788.76, 167,683.26 and 28,682.76 is: 43,024.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,788.76 : 167,683.26 = 28,682.76 : x
  2. Step 2: Convert to fraction form
    111,788.76/167,683.26 = 28,682.76/x
  3. Step 3: Cross multiply
    111,788.76x = 167,683.26 × 28,682.76
  4. Step 4: Simplify right side
    111,788.76x = 4,809,618,702.60
  5. Step 5: Solve for x
    x = 4,809,618,702.60/111,788.76
  6. Step 6: Final answer
    x = 43,024.17

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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.