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Finding the Fourth Proportional to 70,181.57, 105,241.23 and 43,526.48

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Solution

The fourth proportional to 70,181.57, 105,241.23 and 43,526.48 is: 65,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,181.57 : 105,241.23 = 43,526.48 : x
  2. Step 2: Convert to fraction form
    70,181.57/105,241.23 = 43,526.48/x
  3. Step 3: Cross multiply
    70,181.57x = 105,241.23 × 43,526.48
  4. Step 4: Simplify right side
    70,181.57x = 4,580,780,611.14
  5. Step 5: Solve for x
    x = 4,580,780,611.14/70,181.57
  6. Step 6: Final answer
    x = 65,270.42

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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.