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Finding the Fourth Proportional to 223,779.63, 335,669.44 and 65,995.78

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Solution

The fourth proportional to 223,779.63, 335,669.44 and 65,995.78 is: 98,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,779.63 : 335,669.44 = 65,995.78 : x
  2. Step 2: Convert to fraction form
    223,779.63/335,669.44 = 65,995.78/x
  3. Step 3: Cross multiply
    223,779.63x = 335,669.44 × 65,995.78
  4. Step 4: Simplify right side
    223,779.63x = 22,152,766,514.96
  5. Step 5: Solve for x
    x = 22,152,766,514.96/223,779.63
  6. Step 6: Final answer
    x = 98,993.67

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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.