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Finding the Fourth Proportional to 220,838.40, 331,257.60 and 73,094.40

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Solution

The fourth proportional to 220,838.40, 331,257.60 and 73,094.40 is: 109,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,838.40 : 331,257.60 = 73,094.40 : x
  2. Step 2: Convert to fraction form
    220,838.40/331,257.60 = 73,094.40/x
  3. Step 3: Cross multiply
    220,838.40x = 331,257.60 × 73,094.40
  4. Step 4: Simplify right side
    220,838.40x = 24,213,075,517.44
  5. Step 5: Solve for x
    x = 24,213,075,517.44/220,838.40
  6. Step 6: Final answer
    x = 109,641.60

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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.