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Finding the Fourth Proportional to 268,336.60, 402,504.90 and 163,360.60

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Solution

The fourth proportional to 268,336.60, 402,504.90 and 163,360.60 is: 245,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,336.60 : 402,504.90 = 163,360.60 : x
  2. Step 2: Convert to fraction form
    268,336.60/402,504.90 = 163,360.60/x
  3. Step 3: Cross multiply
    268,336.60x = 402,504.90 × 163,360.60
  4. Step 4: Simplify right side
    268,336.60x = 65,753,441,966.94
  5. Step 5: Solve for x
    x = 65,753,441,966.94/268,336.60
  6. Step 6: Final answer
    x = 245,040.90

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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.