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Finding the Fourth Proportional to 222,256.80, 333,385.20 and 89,157.60

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Solution

The fourth proportional to 222,256.80, 333,385.20 and 89,157.60 is: 133,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,256.80 : 333,385.20 = 89,157.60 : x
  2. Step 2: Convert to fraction form
    222,256.80/333,385.20 = 89,157.60/x
  3. Step 3: Cross multiply
    222,256.80x = 333,385.20 × 89,157.60
  4. Step 4: Simplify right side
    222,256.80x = 29,723,824,307.52
  5. Step 5: Solve for x
    x = 29,723,824,307.52/222,256.80
  6. Step 6: Final answer
    x = 133,736.40

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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.