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Finding the Fourth Proportional to 163,435.47, 225,449.94 and 151,876

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Solution

The fourth proportional to 163,435.47, 225,449.94 and 151,876 is: 209,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,435.47 : 225,449.94 = 151,876 : x
  2. Step 2: Convert to fraction form
    163,435.47/225,449.94 = 151,876/x
  3. Step 3: Cross multiply
    163,435.47x = 225,449.94 × 151,876
  4. Step 4: Simplify right side
    163,435.47x = 34,240,435,087.44
  5. Step 5: Solve for x
    x = 34,240,435,087.44/163,435.47
  6. Step 6: Final answer
    x = 209,504.31

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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.