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Finding the Fourth Proportional to 223,652.80, 335,662.80 and 221,903.20

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Solution

The fourth proportional to 223,652.80, 335,662.80 and 221,903.20 is: 333,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,652.80 : 335,662.80 = 221,903.20 : x
  2. Step 2: Convert to fraction form
    223,652.80/335,662.80 = 221,903.20/x
  3. Step 3: Cross multiply
    223,652.80x = 335,662.80 × 221,903.20
  4. Step 4: Simplify right side
    223,652.80x = 74,484,649,440.96
  5. Step 5: Solve for x
    x = 74,484,649,440.96/223,652.80
  6. Step 6: Final answer
    x = 333,036.96

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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.