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Finding the Fourth Proportional to 178,849.60, 268,274.40 and 131,610.40

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Solution

The fourth proportional to 178,849.60, 268,274.40 and 131,610.40 is: 197,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,849.60 : 268,274.40 = 131,610.40 : x
  2. Step 2: Convert to fraction form
    178,849.60/268,274.40 = 131,610.40/x
  3. Step 3: Cross multiply
    178,849.60x = 268,274.40 × 131,610.40
  4. Step 4: Simplify right side
    178,849.60x = 35,307,701,093.76
  5. Step 5: Solve for x
    x = 35,307,701,093.76/178,849.60
  6. Step 6: Final answer
    x = 197,415.60

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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.