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Finding the Fourth Proportional to 235,615.30, 352,904.55 and 204,511.30

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Solution

The fourth proportional to 235,615.30, 352,904.55 and 204,511.30 is: 306,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,615.30 : 352,904.55 = 204,511.30 : x
  2. Step 2: Convert to fraction form
    235,615.30/352,904.55 = 204,511.30/x
  3. Step 3: Cross multiply
    235,615.30x = 352,904.55 × 204,511.30
  4. Step 4: Simplify right side
    235,615.30x = 72,172,968,296.42
  5. Step 5: Solve for x
    x = 72,172,968,296.42/235,615.30
  6. Step 6: Final answer
    x = 306,316.98

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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.