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Finding the Fourth Proportional to 178,490.56, 246,483.66 and 114,940.12

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Solution

The fourth proportional to 178,490.56, 246,483.66 and 114,940.12 is: 158,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,490.56 : 246,483.66 = 114,940.12 : x
  2. Step 2: Convert to fraction form
    178,490.56/246,483.66 = 114,940.12/x
  3. Step 3: Cross multiply
    178,490.56x = 246,483.66 × 114,940.12
  4. Step 4: Simplify right side
    178,490.56x = 28,330,861,458.44
  5. Step 5: Solve for x
    x = 28,330,861,458.44/178,490.56
  6. Step 6: Final answer
    x = 158,724.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.