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Finding the Fourth Proportional to 104,803.27, 156,722.04 and 77,836.55

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Solution

The fourth proportional to 104,803.27, 156,722.04 and 77,836.55 is: 116,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,803.27 : 156,722.04 = 77,836.55 : x
  2. Step 2: Convert to fraction form
    104,803.27/156,722.04 = 77,836.55/x
  3. Step 3: Cross multiply
    104,803.27x = 156,722.04 × 77,836.55
  4. Step 4: Simplify right side
    104,803.27x = 12,198,702,118.95
  5. Step 5: Solve for x
    x = 12,198,702,118.95/104,803.27
  6. Step 6: Final answer
    x = 116,396.20

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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.