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Finding the Fourth Proportional to 223,359.60, 335,039.40 and 197,990.40

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Solution

The fourth proportional to 223,359.60, 335,039.40 and 197,990.40 is: 296,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,359.60 : 335,039.40 = 197,990.40 : x
  2. Step 2: Convert to fraction form
    223,359.60/335,039.40 = 197,990.40/x
  3. Step 3: Cross multiply
    223,359.60x = 335,039.40 × 197,990.40
  4. Step 4: Simplify right side
    223,359.60x = 66,334,584,821.76
  5. Step 5: Solve for x
    x = 66,334,584,821.76/223,359.60
  6. Step 6: Final answer
    x = 296,985.60

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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.