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Finding the Fourth Proportional to 73,756,745.80, 103,057,890.20 and 73,756,745.80

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Solution

The fourth proportional to 73,756,745.80, 103,057,890.20 and 73,756,745.80 is: 103,057,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,756,745.80 : 103,057,890.20 = 73,756,745.80 : x
  2. Step 2: Convert to fraction form
    73,756,745.80/103,057,890.20 = 73,756,745.80/x
  3. Step 3: Cross multiply
    73,756,745.80x = 103,057,890.20 × 73,756,745.80
  4. Step 4: Simplify right side
    73,756,745.80x = 7,601,214,610,165,711
  5. Step 5: Solve for x
    x = 7,601,214,610,165,711/73,756,745.80
  6. Step 6: Final answer
    x = 103,057,890.20

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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.