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Finding the Fourth Proportional to 188,571.41, 260,237.88 and 116,974.50

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Solution

The fourth proportional to 188,571.41, 260,237.88 and 116,974.50 is: 161,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,571.41 : 260,237.88 = 116,974.50 : x
  2. Step 2: Convert to fraction form
    188,571.41/260,237.88 = 116,974.50/x
  3. Step 3: Cross multiply
    188,571.41x = 260,237.88 × 116,974.50
  4. Step 4: Simplify right side
    188,571.41x = 30,441,195,894.06
  5. Step 5: Solve for x
    x = 30,441,195,894.06/188,571.41
  6. Step 6: Final answer
    x = 161,430.60

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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.