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Finding the Fourth Proportional to 109,906.60, 164,811.30 and 50,711.80

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Solution

The fourth proportional to 109,906.60, 164,811.30 and 50,711.80 is: 76,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,906.60 : 164,811.30 = 50,711.80 : x
  2. Step 2: Convert to fraction form
    109,906.60/164,811.30 = 50,711.80/x
  3. Step 3: Cross multiply
    109,906.60x = 164,811.30 × 50,711.80
  4. Step 4: Simplify right side
    109,906.60x = 8,357,877,683.34
  5. Step 5: Solve for x
    x = 8,357,877,683.34/109,906.60
  6. Step 6: Final answer
    x = 76,045.28

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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.