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Finding the Fourth Proportional to 108,916.38, 163,304.37 and 73,413.54

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Solution

The fourth proportional to 108,916.38, 163,304.37 and 73,413.54 is: 110,072.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,916.38 : 163,304.37 = 73,413.54 : x
  2. Step 2: Convert to fraction form
    108,916.38/163,304.37 = 73,413.54/x
  3. Step 3: Cross multiply
    108,916.38x = 163,304.37 × 73,413.54
  4. Step 4: Simplify right side
    108,916.38x = 11,988,751,899.17
  5. Step 5: Solve for x
    x = 11,988,751,899.17/108,916.38
  6. Step 6: Final answer
    x = 110,072.99

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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.