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Finding the Fourth Proportional to 223,422.40, 335,133.60 and 221,867.20

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Solution

The fourth proportional to 223,422.40, 335,133.60 and 221,867.20 is: 332,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,422.40 : 335,133.60 = 221,867.20 : x
  2. Step 2: Convert to fraction form
    223,422.40/335,133.60 = 221,867.20/x
  3. Step 3: Cross multiply
    223,422.40x = 335,133.60 × 221,867.20
  4. Step 4: Simplify right side
    223,422.40x = 74,355,153,457.92
  5. Step 5: Solve for x
    x = 74,355,153,457.92/223,422.40
  6. Step 6: Final answer
    x = 332,800.80

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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.