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Finding the Fourth Proportional to 268,443.94, 402,957.67 and 108,629.88

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Solution

The fourth proportional to 268,443.94, 402,957.67 and 108,629.88 is: 163,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,443.94 : 402,957.67 = 108,629.88 : x
  2. Step 2: Convert to fraction form
    268,443.94/402,957.67 = 108,629.88/x
  3. Step 3: Cross multiply
    268,443.94x = 402,957.67 × 108,629.88
  4. Step 4: Simplify right side
    268,443.94x = 43,773,241,758.19
  5. Step 5: Solve for x
    x = 43,773,241,758.19/268,443.94
  6. Step 6: Final answer
    x = 163,062.88

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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.