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Finding the Fourth Proportional to 326,036.40, 489,200.40 and 115,825.20

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Solution

The fourth proportional to 326,036.40, 489,200.40 and 115,825.20 is: 173,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,036.40 : 489,200.40 = 115,825.20 : x
  2. Step 2: Convert to fraction form
    326,036.40/489,200.40 = 115,825.20/x
  3. Step 3: Cross multiply
    326,036.40x = 489,200.40 × 115,825.20
  4. Step 4: Simplify right side
    326,036.40x = 56,661,734,170.08
  5. Step 5: Solve for x
    x = 56,661,734,170.08/326,036.40
  6. Step 6: Final answer
    x = 173,789.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.