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Finding the Fourth Proportional to 108,929.91, 163,403.02 and 30,043.41

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Solution

The fourth proportional to 108,929.91, 163,403.02 and 30,043.41 is: 45,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,929.91 : 163,403.02 = 30,043.41 : x
  2. Step 2: Convert to fraction form
    108,929.91/163,403.02 = 30,043.41/x
  3. Step 3: Cross multiply
    108,929.91x = 163,403.02 × 30,043.41
  4. Step 4: Simplify right side
    108,929.91x = 4,909,183,349.89
  5. Step 5: Solve for x
    x = 4,909,183,349.89/108,929.91
  6. Step 6: Final answer
    x = 45,067.36

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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.