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Finding the Fourth Proportional to 178,606.86, 246,489.78 and 118,072.52

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Solution

The fourth proportional to 178,606.86, 246,489.78 and 118,072.52 is: 162,948.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,606.86 : 246,489.78 = 118,072.52 : x
  2. Step 2: Convert to fraction form
    178,606.86/246,489.78 = 118,072.52/x
  3. Step 3: Cross multiply
    178,606.86x = 246,489.78 × 118,072.52
  4. Step 4: Simplify right side
    178,606.86x = 29,103,669,478.85
  5. Step 5: Solve for x
    x = 29,103,669,478.85/178,606.86
  6. Step 6: Final answer
    x = 162,948.22

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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.