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Finding the Fourth Proportional to 104,704.74, 156,966.39 and 42,334.74

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Solution

The fourth proportional to 104,704.74, 156,966.39 and 42,334.74 is: 63,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,704.74 : 156,966.39 = 42,334.74 : x
  2. Step 2: Convert to fraction form
    104,704.74/156,966.39 = 42,334.74/x
  3. Step 3: Cross multiply
    104,704.74x = 156,966.39 × 42,334.74
  4. Step 4: Simplify right side
    104,704.74x = 6,645,131,309.39
  5. Step 5: Solve for x
    x = 6,645,131,309.39/104,704.74
  6. Step 6: Final answer
    x = 63,465.43

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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.