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Finding the Fourth Proportional to 268,618.60, 402,582.30 and 163,325.80

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Solution

The fourth proportional to 268,618.60, 402,582.30 and 163,325.80 is: 244,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,618.60 : 402,582.30 = 163,325.80 : x
  2. Step 2: Convert to fraction form
    268,618.60/402,582.30 = 163,325.80/x
  3. Step 3: Cross multiply
    268,618.60x = 402,582.30 × 163,325.80
  4. Step 4: Simplify right side
    268,618.60x = 65,752,076,213.34
  5. Step 5: Solve for x
    x = 65,752,076,213.34/268,618.60
  6. Step 6: Final answer
    x = 244,778.57

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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.