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Finding the Fourth Proportional to 371,687.58, 556,153.56 and 222,009.30

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Solution

The fourth proportional to 371,687.58, 556,153.56 and 222,009.30 is: 332,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,687.58 : 556,153.56 = 222,009.30 : x
  2. Step 2: Convert to fraction form
    371,687.58/556,153.56 = 222,009.30/x
  3. Step 3: Cross multiply
    371,687.58x = 556,153.56 × 222,009.30
  4. Step 4: Simplify right side
    371,687.58x = 123,471,262,548.11
  5. Step 5: Solve for x
    x = 123,471,262,548.11/371,687.58
  6. Step 6: Final answer
    x = 332,190.98

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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.