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Finding the Fourth Proportional to 53,906,968.40, 80,860,452.60 and 52,489,792.40

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Solution

The fourth proportional to 53,906,968.40, 80,860,452.60 and 52,489,792.40 is: 78,734,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,906,968.40 : 80,860,452.60 = 52,489,792.40 : x
  2. Step 2: Convert to fraction form
    53,906,968.40/80,860,452.60 = 52,489,792.40/x
  3. Step 3: Cross multiply
    53,906,968.40x = 80,860,452.60 × 52,489,792.40
  4. Step 4: Simplify right side
    53,906,968.40x = 4,244,348,370,344,040
  5. Step 5: Solve for x
    x = 4,244,348,370,344,040/53,906,968.40
  6. Step 6: Final answer
    x = 78,734,688.60

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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.