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Finding the Fourth Proportional to 268,446.67, 402,961.76 and 108,632.60

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Solution

The fourth proportional to 268,446.67, 402,961.76 and 108,632.60 is: 163,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,446.67 : 402,961.76 = 108,632.60 : x
  2. Step 2: Convert to fraction form
    268,446.67/402,961.76 = 108,632.60/x
  3. Step 3: Cross multiply
    268,446.67x = 402,961.76 × 108,632.60
  4. Step 4: Simplify right side
    268,446.67x = 43,774,781,131.40
  5. Step 5: Solve for x
    x = 43,774,781,131.40/268,446.67
  6. Step 6: Final answer
    x = 163,066.96

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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.