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Finding the Fourth Proportional to 67,466.80, 101,113.80 and 51,806.80

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Solution

The fourth proportional to 67,466.80, 101,113.80 and 51,806.80 is: 77,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,466.80 : 101,113.80 = 51,806.80 : x
  2. Step 2: Convert to fraction form
    67,466.80/101,113.80 = 51,806.80/x
  3. Step 3: Cross multiply
    67,466.80x = 101,113.80 × 51,806.80
  4. Step 4: Simplify right side
    67,466.80x = 5,238,382,413.84
  5. Step 5: Solve for x
    x = 5,238,382,413.84/67,466.80
  6. Step 6: Final answer
    x = 77,643.85

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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.