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Finding the Fourth Proportional to 61,601.18, 92,413.16 and 19,491.86

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Solution

The fourth proportional to 61,601.18, 92,413.16 and 19,491.86 is: 29,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,601.18 : 92,413.16 = 19,491.86 : x
  2. Step 2: Convert to fraction form
    61,601.18/92,413.16 = 19,491.86/x
  3. Step 3: Cross multiply
    61,601.18x = 92,413.16 × 19,491.86
  4. Step 4: Simplify right side
    61,601.18x = 1,801,303,817.35
  5. Step 5: Solve for x
    x = 1,801,303,817.35/61,601.18
  6. Step 6: Final answer
    x = 29,241.39

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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.