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Finding the Fourth Proportional to 164,447.60, 246,786.60 and 105,426.80

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Solution

The fourth proportional to 164,447.60, 246,786.60 and 105,426.80 is: 158,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,447.60 : 246,786.60 = 105,426.80 : x
  2. Step 2: Convert to fraction form
    164,447.60/246,786.60 = 105,426.80/x
  3. Step 3: Cross multiply
    164,447.60x = 246,786.60 × 105,426.80
  4. Step 4: Simplify right side
    164,447.60x = 26,017,921,520.88
  5. Step 5: Solve for x
    x = 26,017,921,520.88/164,447.60
  6. Step 6: Final answer
    x = 158,214.05

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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.