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Finding the Fourth Proportional to 108,946.92, 163,483.02 and 45,761.52

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Solution

The fourth proportional to 108,946.92, 163,483.02 and 45,761.52 is: 68,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,946.92 : 163,483.02 = 45,761.52 : x
  2. Step 2: Convert to fraction form
    108,946.92/163,483.02 = 45,761.52/x
  3. Step 3: Cross multiply
    108,946.92x = 163,483.02 × 45,761.52
  4. Step 4: Simplify right side
    108,946.92x = 7,481,231,489.39
  5. Step 5: Solve for x
    x = 7,481,231,489.39/108,946.92
  6. Step 6: Final answer
    x = 68,668.59

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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.