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Finding the Fourth Proportional to 223,885.56, 335,828.40 and 74,085.60

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Solution

The fourth proportional to 223,885.56, 335,828.40 and 74,085.60 is: 111,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,885.56 : 335,828.40 = 74,085.60 : x
  2. Step 2: Convert to fraction form
    223,885.56/335,828.40 = 74,085.60/x
  3. Step 3: Cross multiply
    223,885.56x = 335,828.40 × 74,085.60
  4. Step 4: Simplify right side
    223,885.56x = 24,880,048,511.04
  5. Step 5: Solve for x
    x = 24,880,048,511.04/223,885.56
  6. Step 6: Final answer
    x = 111,128.42

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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.