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Finding the Fourth Proportional to 99,525.88, 149,240.22 and 43,413.40

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Solution

The fourth proportional to 99,525.88, 149,240.22 and 43,413.40 is: 65,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,525.88 : 149,240.22 = 43,413.40 : x
  2. Step 2: Convert to fraction form
    99,525.88/149,240.22 = 43,413.40/x
  3. Step 3: Cross multiply
    99,525.88x = 149,240.22 × 43,413.40
  4. Step 4: Simplify right side
    99,525.88x = 6,479,025,366.95
  5. Step 5: Solve for x
    x = 6,479,025,366.95/99,525.88
  6. Step 6: Final answer
    x = 65,098.90

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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.