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Finding the Fourth Proportional to 51,008,851.90, 71,563,558.10 and 51,008,851.90

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Solution

The fourth proportional to 51,008,851.90, 71,563,558.10 and 51,008,851.90 is: 71,563,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,008,851.90 : 71,563,558.10 = 51,008,851.90 : x
  2. Step 2: Convert to fraction form
    51,008,851.90/71,563,558.10 = 51,008,851.90/x
  3. Step 3: Cross multiply
    51,008,851.90x = 71,563,558.10 × 51,008,851.90
  4. Step 4: Simplify right side
    51,008,851.90x = 3,650,374,936,559,945
  5. Step 5: Solve for x
    x = 3,650,374,936,559,945/51,008,851.90
  6. Step 6: Final answer
    x = 71,563,558.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.