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Finding the Fourth Proportional to 73,815.70, 103,108.70 and 73,815.70

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Solution

The fourth proportional to 73,815.70, 103,108.70 and 73,815.70 is: 103,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.70 : 103,108.70 = 73,815.70 : x
  2. Step 2: Convert to fraction form
    73,815.70/103,108.70 = 73,815.70/x
  3. Step 3: Cross multiply
    73,815.70x = 103,108.70 × 73,815.70
  4. Step 4: Simplify right side
    73,815.70x = 7,611,040,866.59
  5. Step 5: Solve for x
    x = 7,611,040,866.59/73,815.70
  6. Step 6: Final answer
    x = 103,108.70

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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.