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Finding the Fourth Proportional to 186,072.56, 279,152.40 and 61,413.44

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Solution

The fourth proportional to 186,072.56, 279,152.40 and 61,413.44 is: 92,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,072.56 : 279,152.40 = 61,413.44 : x
  2. Step 2: Convert to fraction form
    186,072.56/279,152.40 = 61,413.44/x
  3. Step 3: Cross multiply
    186,072.56x = 279,152.40 × 61,413.44
  4. Step 4: Simplify right side
    186,072.56x = 17,143,709,168.26
  5. Step 5: Solve for x
    x = 17,143,709,168.26/186,072.56
  6. Step 6: Final answer
    x = 92,134.54

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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.