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Finding the Fourth Proportional to 108,804.40, 163,204.44 and 71,599.48

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Solution

The fourth proportional to 108,804.40, 163,204.44 and 71,599.48 is: 107,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,804.40 : 163,204.44 = 71,599.48 : x
  2. Step 2: Convert to fraction form
    108,804.40/163,204.44 = 71,599.48/x
  3. Step 3: Cross multiply
    108,804.40x = 163,204.44 × 71,599.48
  4. Step 4: Simplify right side
    108,804.40x = 11,685,353,037.69
  5. Step 5: Solve for x
    x = 11,685,353,037.69/108,804.40
  6. Step 6: Final answer
    x = 107,397.80

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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.