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Finding the Fourth Proportional to 223,487.75, 335,442.28 and 81,470.35

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Solution

The fourth proportional to 223,487.75, 335,442.28 and 81,470.35 is: 122,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,487.75 : 335,442.28 = 81,470.35 : x
  2. Step 2: Convert to fraction form
    223,487.75/335,442.28 = 81,470.35/x
  3. Step 3: Cross multiply
    223,487.75x = 335,442.28 × 81,470.35
  4. Step 4: Simplify right side
    223,487.75x = 27,328,598,914.12
  5. Step 5: Solve for x
    x = 27,328,598,914.12/223,487.75
  6. Step 6: Final answer
    x = 122,282.31

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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.