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Finding the Fourth Proportional to 197,551.25, 272,620.71 and 106,907.20

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Solution

The fourth proportional to 197,551.25, 272,620.71 and 106,907.20 is: 147,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,551.25 : 272,620.71 = 106,907.20 : x
  2. Step 2: Convert to fraction form
    197,551.25/272,620.71 = 106,907.20/x
  3. Step 3: Cross multiply
    197,551.25x = 272,620.71 × 106,907.20
  4. Step 4: Simplify right side
    197,551.25x = 29,145,116,233.58
  5. Step 5: Solve for x
    x = 29,145,116,233.58/197,551.25
  6. Step 6: Final answer
    x = 147,531.93

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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.