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Finding the Fourth Proportional to 192,627.01, 288,984.26 and 103,878.55

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Solution

The fourth proportional to 192,627.01, 288,984.26 and 103,878.55 is: 155,841.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,627.01 : 288,984.26 = 103,878.55 : x
  2. Step 2: Convert to fraction form
    192,627.01/288,984.26 = 103,878.55/x
  3. Step 3: Cross multiply
    192,627.01x = 288,984.26 × 103,878.55
  4. Step 4: Simplify right side
    192,627.01x = 30,019,265,938.23
  5. Step 5: Solve for x
    x = 30,019,265,938.23/192,627.01
  6. Step 6: Final answer
    x = 155,841.41

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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.