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Finding the Fourth Proportional to 223,043.80, 334,565.70 and 205,072.60

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Solution

The fourth proportional to 223,043.80, 334,565.70 and 205,072.60 is: 307,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,043.80 : 334,565.70 = 205,072.60 : x
  2. Step 2: Convert to fraction form
    223,043.80/334,565.70 = 205,072.60/x
  3. Step 3: Cross multiply
    223,043.80x = 334,565.70 × 205,072.60
  4. Step 4: Simplify right side
    223,043.80x = 68,610,257,969.82
  5. Step 5: Solve for x
    x = 68,610,257,969.82/223,043.80
  6. Step 6: Final answer
    x = 307,608.90

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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.