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Finding the Fourth Proportional to 223,379.22, 335,068.17 and 90,257.93

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Solution

The fourth proportional to 223,379.22, 335,068.17 and 90,257.93 is: 135,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,379.22 : 335,068.17 = 90,257.93 : x
  2. Step 2: Convert to fraction form
    223,379.22/335,068.17 = 90,257.93/x
  3. Step 3: Cross multiply
    223,379.22x = 335,068.17 × 90,257.93
  4. Step 4: Simplify right side
    223,379.22x = 30,242,559,433.09
  5. Step 5: Solve for x
    x = 30,242,559,433.09/223,379.22
  6. Step 6: Final answer
    x = 135,386.63

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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.