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Finding the Fourth Proportional to 71,040,077.40, 106,560,116.10 and 71,040,077.40

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Solution

The fourth proportional to 71,040,077.40, 106,560,116.10 and 71,040,077.40 is: 106,560,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,040,077.40 : 106,560,116.10 = 71,040,077.40 : x
  2. Step 2: Convert to fraction form
    71,040,077.40/106,560,116.10 = 71,040,077.40/x
  3. Step 3: Cross multiply
    71,040,077.40x = 106,560,116.10 × 71,040,077.40
  4. Step 4: Simplify right side
    71,040,077.40x = 7,570,038,895,496,986
  5. Step 5: Solve for x
    x = 7,570,038,895,496,986/71,040,077.40
  6. Step 6: Final answer
    x = 106,560,116.10

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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.