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Finding the Fourth Proportional to 99,556.90, 149,413.11 and 37,245.22

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Solution

The fourth proportional to 99,556.90, 149,413.11 and 37,245.22 is: 55,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,556.90 : 149,413.11 = 37,245.22 : x
  2. Step 2: Convert to fraction form
    99,556.90/149,413.11 = 37,245.22/x
  3. Step 3: Cross multiply
    99,556.90x = 149,413.11 × 37,245.22
  4. Step 4: Simplify right side
    99,556.90x = 5,564,924,152.83
  5. Step 5: Solve for x
    x = 5,564,924,152.83/99,556.90
  6. Step 6: Final answer
    x = 55,896.92

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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.