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Finding the Fourth Proportional to 355,618.60, 532,682.70 and 166,240.60

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Solution

The fourth proportional to 355,618.60, 532,682.70 and 166,240.60 is: 249,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,618.60 : 532,682.70 = 166,240.60 : x
  2. Step 2: Convert to fraction form
    355,618.60/532,682.70 = 166,240.60/x
  3. Step 3: Cross multiply
    355,618.60x = 532,682.70 × 166,240.60
  4. Step 4: Simplify right side
    355,618.60x = 88,553,491,657.62
  5. Step 5: Solve for x
    x = 88,553,491,657.62/355,618.60
  6. Step 6: Final answer
    x = 249,012.54

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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.