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Finding the Fourth Proportional to 223,937.20, 335,905.80 and 74,200.60

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Solution

The fourth proportional to 223,937.20, 335,905.80 and 74,200.60 is: 111,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,937.20 : 335,905.80 = 74,200.60 : x
  2. Step 2: Convert to fraction form
    223,937.20/335,905.80 = 74,200.60/x
  3. Step 3: Cross multiply
    223,937.20x = 335,905.80 × 74,200.60
  4. Step 4: Simplify right side
    223,937.20x = 24,924,411,903.48
  5. Step 5: Solve for x
    x = 24,924,411,903.48/223,937.20
  6. Step 6: Final answer
    x = 111,300.90

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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.