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Finding the Fourth Proportional to 223,621.92, 335,443.68 and 65,851.92

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Solution

The fourth proportional to 223,621.92, 335,443.68 and 65,851.92 is: 98,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,621.92 : 335,443.68 = 65,851.92 : x
  2. Step 2: Convert to fraction form
    223,621.92/335,443.68 = 65,851.92/x
  3. Step 3: Cross multiply
    223,621.92x = 335,443.68 × 65,851.92
  4. Step 4: Simplify right side
    223,621.92x = 22,089,610,379.87
  5. Step 5: Solve for x
    x = 22,089,610,379.87/223,621.92
  6. Step 6: Final answer
    x = 98,781.06

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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.