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Finding the Fourth Proportional to 163,078.76, 225,049.08 and 95,142.44

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Solution

The fourth proportional to 163,078.76, 225,049.08 and 95,142.44 is: 131,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,078.76 : 225,049.08 = 95,142.44 : x
  2. Step 2: Convert to fraction form
    163,078.76/225,049.08 = 95,142.44/x
  3. Step 3: Cross multiply
    163,078.76x = 225,049.08 × 95,142.44
  4. Step 4: Simplify right side
    163,078.76x = 21,411,718,590.96
  5. Step 5: Solve for x
    x = 21,411,718,590.96/163,078.76
  6. Step 6: Final answer
    x = 131,296.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.