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Finding the Fourth Proportional to 223,720.92, 335,573.16 and 55,239.90

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Solution

The fourth proportional to 223,720.92, 335,573.16 and 55,239.90 is: 82,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,720.92 : 335,573.16 = 55,239.90 : x
  2. Step 2: Convert to fraction form
    223,720.92/335,573.16 = 55,239.90/x
  3. Step 3: Cross multiply
    223,720.92x = 335,573.16 × 55,239.90
  4. Step 4: Simplify right side
    223,720.92x = 18,537,027,801.08
  5. Step 5: Solve for x
    x = 18,537,027,801.08/223,720.92
  6. Step 6: Final answer
    x = 82,857.82

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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.