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Finding the Fourth Proportional to 99,654.76, 149,413.02 and 52,940.44

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Solution

The fourth proportional to 99,654.76, 149,413.02 and 52,940.44 is: 79,373.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,654.76 : 149,413.02 = 52,940.44 : x
  2. Step 2: Convert to fraction form
    99,654.76/149,413.02 = 52,940.44/x
  3. Step 3: Cross multiply
    99,654.76x = 149,413.02 × 52,940.44
  4. Step 4: Simplify right side
    99,654.76x = 7,909,991,020.53
  5. Step 5: Solve for x
    x = 7,909,991,020.53/99,654.76
  6. Step 6: Final answer
    x = 79,373.94

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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.