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Finding the Fourth Proportional to 268,201.90, 402,562.05 and 163,225.90

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Solution

The fourth proportional to 268,201.90, 402,562.05 and 163,225.90 is: 244,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,201.90 : 402,562.05 = 163,225.90 : x
  2. Step 2: Convert to fraction form
    268,201.90/402,562.05 = 163,225.90/x
  3. Step 3: Cross multiply
    268,201.90x = 402,562.05 × 163,225.90
  4. Step 4: Simplify right side
    268,201.90x = 65,708,552,917.10
  5. Step 5: Solve for x
    x = 65,708,552,917.10/268,201.90
  6. Step 6: Final answer
    x = 244,996.60

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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.