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Finding the Fourth Proportional to 78,793.85, 117,576.22 and 70,301.98

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Solution

The fourth proportional to 78,793.85, 117,576.22 and 70,301.98 is: 104,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,793.85 : 117,576.22 = 70,301.98 : x
  2. Step 2: Convert to fraction form
    78,793.85/117,576.22 = 70,301.98/x
  3. Step 3: Cross multiply
    78,793.85x = 117,576.22 × 70,301.98
  4. Step 4: Simplify right side
    78,793.85x = 8,265,840,479.03
  5. Step 5: Solve for x
    x = 8,265,840,479.03/78,793.85
  6. Step 6: Final answer
    x = 104,904.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.