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Finding the Fourth Proportional to 148,790, 205,272.26 and 84,244.37

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Solution

The fourth proportional to 148,790, 205,272.26 and 84,244.37 is: 116,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,790 : 205,272.26 = 84,244.37 : x
  2. Step 2: Convert to fraction form
    148,790/205,272.26 = 84,244.37/x
  3. Step 3: Cross multiply
    148,790x = 205,272.26 × 84,244.37
  4. Step 4: Simplify right side
    148,790x = 17,293,032,222.18
  5. Step 5: Solve for x
    x = 17,293,032,222.18/148,790
  6. Step 6: Final answer
    x = 116,224.43

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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.