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Finding the Fourth Proportional to 96,768.80, 145,104.60 and 44,118.80

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Solution

The fourth proportional to 96,768.80, 145,104.60 and 44,118.80 is: 66,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,768.80 : 145,104.60 = 44,118.80 : x
  2. Step 2: Convert to fraction form
    96,768.80/145,104.60 = 44,118.80/x
  3. Step 3: Cross multiply
    96,768.80x = 145,104.60 × 44,118.80
  4. Step 4: Simplify right side
    96,768.80x = 6,401,840,826.48
  5. Step 5: Solve for x
    x = 6,401,840,826.48/96,768.80
  6. Step 6: Final answer
    x = 66,156.04

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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.