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Finding the Fourth Proportional to 131,907.62, 197,863.60 and 37,140.08

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Solution

The fourth proportional to 131,907.62, 197,863.60 and 37,140.08 is: 55,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,907.62 : 197,863.60 = 37,140.08 : x
  2. Step 2: Convert to fraction form
    131,907.62/197,863.60 = 37,140.08/x
  3. Step 3: Cross multiply
    131,907.62x = 197,863.60 × 37,140.08
  4. Step 4: Simplify right side
    131,907.62x = 7,348,670,033.54
  5. Step 5: Solve for x
    x = 7,348,670,033.54/131,907.62
  6. Step 6: Final answer
    x = 55,710.73

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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.