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Finding the Fourth Proportional to 51,231,433.60, 76,847,150.40 and 51,231,433.60

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Solution

The fourth proportional to 51,231,433.60, 76,847,150.40 and 51,231,433.60 is: 76,847,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,231,433.60 : 76,847,150.40 = 51,231,433.60 : x
  2. Step 2: Convert to fraction form
    51,231,433.60/76,847,150.40 = 51,231,433.60/x
  3. Step 3: Cross multiply
    51,231,433.60x = 76,847,150.40 × 51,231,433.60
  4. Step 4: Simplify right side
    51,231,433.60x = 3,936,989,683,066,814
  5. Step 5: Solve for x
    x = 3,936,989,683,066,814/51,231,433.60
  6. Step 6: Final answer
    x = 76,847,150.40

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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.