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Finding the Fourth Proportional to 178,447.20, 267,584.40 and 99,477.60

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Solution

The fourth proportional to 178,447.20, 267,584.40 and 99,477.60 is: 149,168.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,447.20 : 267,584.40 = 99,477.60 : x
  2. Step 2: Convert to fraction form
    178,447.20/267,584.40 = 99,477.60/x
  3. Step 3: Cross multiply
    178,447.20x = 267,584.40 × 99,477.60
  4. Step 4: Simplify right side
    178,447.20x = 26,618,653,909.44
  5. Step 5: Solve for x
    x = 26,618,653,909.44/178,447.20
  6. Step 6: Final answer
    x = 149,168.24

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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.