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Finding the Fourth Proportional to 259,328.40, 388,992.60 and 62,336.40

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Solution

The fourth proportional to 259,328.40, 388,992.60 and 62,336.40 is: 93,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,328.40 : 388,992.60 = 62,336.40 : x
  2. Step 2: Convert to fraction form
    259,328.40/388,992.60 = 62,336.40/x
  3. Step 3: Cross multiply
    259,328.40x = 388,992.60 × 62,336.40
  4. Step 4: Simplify right side
    259,328.40x = 24,248,398,310.64
  5. Step 5: Solve for x
    x = 24,248,398,310.64/259,328.40
  6. Step 6: Final answer
    x = 93,504.60

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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.