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Finding the Fourth Proportional to 178,816.80, 267,836.40 and 108,573.60

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Solution

The fourth proportional to 178,816.80, 267,836.40 and 108,573.60 is: 162,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,816.80 : 267,836.40 = 108,573.60 : x
  2. Step 2: Convert to fraction form
    178,816.80/267,836.40 = 108,573.60/x
  3. Step 3: Cross multiply
    178,816.80x = 267,836.40 × 108,573.60
  4. Step 4: Simplify right side
    178,816.80x = 29,079,962,159.04
  5. Step 5: Solve for x
    x = 29,079,962,159.04/178,816.80
  6. Step 6: Final answer
    x = 162,624.33

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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.