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Finding the Fourth Proportional to 108,514.53, 163,021.95 and 104,030.60

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Solution

The fourth proportional to 108,514.53, 163,021.95 and 104,030.60 is: 156,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,514.53 : 163,021.95 = 104,030.60 : x
  2. Step 2: Convert to fraction form
    108,514.53/163,021.95 = 104,030.60/x
  3. Step 3: Cross multiply
    108,514.53x = 163,021.95 × 104,030.60
  4. Step 4: Simplify right side
    108,514.53x = 16,959,270,456.56
  5. Step 5: Solve for x
    x = 16,959,270,456.56/108,514.53
  6. Step 6: Final answer
    x = 156,285.71

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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.