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Finding the Fourth Proportional to 163,603.05, 225,696.43 and 95,622.90

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Solution

The fourth proportional to 163,603.05, 225,696.43 and 95,622.90 is: 131,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,603.05 : 225,696.43 = 95,622.90 : x
  2. Step 2: Convert to fraction form
    163,603.05/225,696.43 = 95,622.90/x
  3. Step 3: Cross multiply
    163,603.05x = 225,696.43 × 95,622.90
  4. Step 4: Simplify right side
    163,603.05x = 21,581,747,156.25
  5. Step 5: Solve for x
    x = 21,581,747,156.25/163,603.05
  6. Step 6: Final answer
    x = 131,915.31

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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.