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Finding the Fourth Proportional to 178,653.07, 267,979.60 and 53,994.07

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Solution

The fourth proportional to 178,653.07, 267,979.60 and 53,994.07 is: 80,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,653.07 : 267,979.60 = 53,994.07 : x
  2. Step 2: Convert to fraction form
    178,653.07/267,979.60 = 53,994.07/x
  3. Step 3: Cross multiply
    178,653.07x = 267,979.60 × 53,994.07
  4. Step 4: Simplify right side
    178,653.07x = 14,469,307,941.07
  5. Step 5: Solve for x
    x = 14,469,307,941.07/178,653.07
  6. Step 6: Final answer
    x = 80,991.10

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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.