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Finding the Fourth Proportional to 441,636.60, 662,454.90 and 109,212.60

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Solution

The fourth proportional to 441,636.60, 662,454.90 and 109,212.60 is: 163,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,636.60 : 662,454.90 = 109,212.60 : x
  2. Step 2: Convert to fraction form
    441,636.60/662,454.90 = 109,212.60/x
  3. Step 3: Cross multiply
    441,636.60x = 662,454.90 × 109,212.60
  4. Step 4: Simplify right side
    441,636.60x = 72,348,422,011.74
  5. Step 5: Solve for x
    x = 72,348,422,011.74/441,636.60
  6. Step 6: Final answer
    x = 163,818.90

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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.