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Finding the Fourth Proportional to 108,696.30, 163,044.45 and 73,266.90

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Solution

The fourth proportional to 108,696.30, 163,044.45 and 73,266.90 is: 109,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,696.30 : 163,044.45 = 73,266.90 : x
  2. Step 2: Convert to fraction form
    108,696.30/163,044.45 = 73,266.90/x
  3. Step 3: Cross multiply
    108,696.30x = 163,044.45 × 73,266.90
  4. Step 4: Simplify right side
    108,696.30x = 11,945,761,413.71
  5. Step 5: Solve for x
    x = 11,945,761,413.71/108,696.30
  6. Step 6: Final answer
    x = 109,900.35

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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.