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Finding the Fourth Proportional to 163,872.25, 245,832.57 and 83,955.42

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Solution

The fourth proportional to 163,872.25, 245,832.57 and 83,955.42 is: 125,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,872.25 : 245,832.57 = 83,955.42 : x
  2. Step 2: Convert to fraction form
    163,872.25/245,832.57 = 83,955.42/x
  3. Step 3: Cross multiply
    163,872.25x = 245,832.57 × 83,955.42
  4. Step 4: Simplify right side
    163,872.25x = 20,638,976,664.03
  5. Step 5: Solve for x
    x = 20,638,976,664.03/163,872.25
  6. Step 6: Final answer
    x = 125,945.53

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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.