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Finding the Fourth Proportional to 222,615.60, 333,955.80 and 72,819.60

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Solution

The fourth proportional to 222,615.60, 333,955.80 and 72,819.60 is: 109,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,615.60 : 333,955.80 = 72,819.60 : x
  2. Step 2: Convert to fraction form
    222,615.60/333,955.80 = 72,819.60/x
  3. Step 3: Cross multiply
    222,615.60x = 333,955.80 × 72,819.60
  4. Step 4: Simplify right side
    222,615.60x = 24,318,527,773.68
  5. Step 5: Solve for x
    x = 24,318,527,773.68/222,615.60
  6. Step 6: Final answer
    x = 109,240.00

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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.