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Finding the Fourth Proportional to 45,906,755.40, 68,860,133.10 and 45,906,755.40

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Solution

The fourth proportional to 45,906,755.40, 68,860,133.10 and 45,906,755.40 is: 68,860,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,906,755.40 : 68,860,133.10 = 45,906,755.40 : x
  2. Step 2: Convert to fraction form
    45,906,755.40/68,860,133.10 = 45,906,755.40/x
  3. Step 3: Cross multiply
    45,906,755.40x = 68,860,133.10 × 45,906,755.40
  4. Step 4: Simplify right side
    45,906,755.40x = 3,161,145,287,033,143.50
  5. Step 5: Solve for x
    x = 3,161,145,287,033,143.50/45,906,755.40
  6. Step 6: Final answer
    x = 68,860,133.10

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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.