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Finding the Fourth Proportional to 104,690.24, 156,672.48 and 100,335.68

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Solution

The fourth proportional to 104,690.24, 156,672.48 and 100,335.68 is: 150,155.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.24 : 156,672.48 = 100,335.68 : x
  2. Step 2: Convert to fraction form
    104,690.24/156,672.48 = 100,335.68/x
  3. Step 3: Cross multiply
    104,690.24x = 156,672.48 × 100,335.68
  4. Step 4: Simplify right side
    104,690.24x = 15,719,839,818.09
  5. Step 5: Solve for x
    x = 15,719,839,818.09/104,690.24
  6. Step 6: Final answer
    x = 150,155.73

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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.