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Finding the Fourth Proportional to 178,181.70, 245,693.70 and 113,548.56

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Solution

The fourth proportional to 178,181.70, 245,693.70 and 113,548.56 is: 156,571.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,181.70 : 245,693.70 = 113,548.56 : x
  2. Step 2: Convert to fraction form
    178,181.70/245,693.70 = 113,548.56/x
  3. Step 3: Cross multiply
    178,181.70x = 245,693.70 × 113,548.56
  4. Step 4: Simplify right side
    178,181.70x = 27,898,165,836.07
  5. Step 5: Solve for x
    x = 27,898,165,836.07/178,181.70
  6. Step 6: Final answer
    x = 156,571.44

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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.