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Finding the Fourth Proportional to 235,693.60, 353,151.60 and 221,696.80

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Solution

The fourth proportional to 235,693.60, 353,151.60 and 221,696.80 is: 332,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,693.60 : 353,151.60 = 221,696.80 : x
  2. Step 2: Convert to fraction form
    235,693.60/353,151.60 = 221,696.80/x
  3. Step 3: Cross multiply
    235,693.60x = 353,151.60 × 221,696.80
  4. Step 4: Simplify right side
    235,693.60x = 78,292,579,634.88
  5. Step 5: Solve for x
    x = 78,292,579,634.88/235,693.60
  6. Step 6: Final answer
    x = 332,179.49

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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.