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Finding the Fourth Proportional to 74,532.69, 102,769.02 and 59,413.59

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Solution

The fourth proportional to 74,532.69, 102,769.02 and 59,413.59 is: 81,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,532.69 : 102,769.02 = 59,413.59 : x
  2. Step 2: Convert to fraction form
    74,532.69/102,769.02 = 59,413.59/x
  3. Step 3: Cross multiply
    74,532.69x = 102,769.02 × 59,413.59
  4. Step 4: Simplify right side
    74,532.69x = 6,105,876,418.98
  5. Step 5: Solve for x
    x = 6,105,876,418.98/74,532.69
  6. Step 6: Final answer
    x = 81,922.13

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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.