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Finding the Fourth Proportional to 354,585.60, 531,878.40 and 167,961.60

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Solution

The fourth proportional to 354,585.60, 531,878.40 and 167,961.60 is: 251,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,585.60 : 531,878.40 = 167,961.60 : x
  2. Step 2: Convert to fraction form
    354,585.60/531,878.40 = 167,961.60/x
  3. Step 3: Cross multiply
    354,585.60x = 531,878.40 × 167,961.60
  4. Step 4: Simplify right side
    354,585.60x = 89,335,147,069.44
  5. Step 5: Solve for x
    x = 89,335,147,069.44/354,585.60
  6. Step 6: Final answer
    x = 251,942.40

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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.