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Finding the Fourth Proportional to 103,536.38, 155,308.04 and 28,650.26

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Solution

The fourth proportional to 103,536.38, 155,308.04 and 28,650.26 is: 42,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,536.38 : 155,308.04 = 28,650.26 : x
  2. Step 2: Convert to fraction form
    103,536.38/155,308.04 = 28,650.26/x
  3. Step 3: Cross multiply
    103,536.38x = 155,308.04 × 28,650.26
  4. Step 4: Simplify right side
    103,536.38x = 4,449,614,806.30
  5. Step 5: Solve for x
    x = 4,449,614,806.30/103,536.38
  6. Step 6: Final answer
    x = 42,976.34

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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.