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Finding the Fourth Proportional to 178,800.98, 246,744.42 and 97,128.60

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Solution

The fourth proportional to 178,800.98, 246,744.42 and 97,128.60 is: 134,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,800.98 : 246,744.42 = 97,128.60 : x
  2. Step 2: Convert to fraction form
    178,800.98/246,744.42 = 97,128.60/x
  3. Step 3: Cross multiply
    178,800.98x = 246,744.42 × 97,128.60
  4. Step 4: Simplify right side
    178,800.98x = 23,965,940,072.41
  5. Step 5: Solve for x
    x = 23,965,940,072.41/178,800.98
  6. Step 6: Final answer
    x = 134,036.96

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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.