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Finding the Fourth Proportional to 68,793.48, 103,015.26 and 63,019.80

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Solution

The fourth proportional to 68,793.48, 103,015.26 and 63,019.80 is: 94,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.48 : 103,015.26 = 63,019.80 : x
  2. Step 2: Convert to fraction form
    68,793.48/103,015.26 = 63,019.80/x
  3. Step 3: Cross multiply
    68,793.48x = 103,015.26 × 63,019.80
  4. Step 4: Simplify right side
    68,793.48x = 6,492,001,082.15
  5. Step 5: Solve for x
    x = 6,492,001,082.15/68,793.48
  6. Step 6: Final answer
    x = 94,369.42

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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.