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Finding the Fourth Proportional to 108,806.99, 163,112.00 and 38,669.90

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Solution

The fourth proportional to 108,806.99, 163,112.00 and 38,669.90 is: 57,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,806.99 : 163,112.00 = 38,669.90 : x
  2. Step 2: Convert to fraction form
    108,806.99/163,112.00 = 38,669.90/x
  3. Step 3: Cross multiply
    108,806.99x = 163,112.00 × 38,669.90
  4. Step 4: Simplify right side
    108,806.99x = 6,307,523,719.89
  5. Step 5: Solve for x
    x = 6,307,523,719.89/108,806.99
  6. Step 6: Final answer
    x = 57,969.84

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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.