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Finding the Fourth Proportional to 73,618.95, 101,580.30 and 43,413.78

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Solution

The fourth proportional to 73,618.95, 101,580.30 and 43,413.78 is: 59,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,618.95 : 101,580.30 = 43,413.78 : x
  2. Step 2: Convert to fraction form
    73,618.95/101,580.30 = 43,413.78/x
  3. Step 3: Cross multiply
    73,618.95x = 101,580.30 × 43,413.78
  4. Step 4: Simplify right side
    73,618.95x = 4,409,984,796.53
  5. Step 5: Solve for x
    x = 4,409,984,796.53/73,618.95
  6. Step 6: Final answer
    x = 59,902.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.