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Finding the Fourth Proportional to 178,892.80, 246,769.26 and 111,708.16

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Solution

The fourth proportional to 178,892.80, 246,769.26 and 111,708.16 is: 154,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,892.80 : 246,769.26 = 111,708.16 : x
  2. Step 2: Convert to fraction form
    178,892.80/246,769.26 = 111,708.16/x
  3. Step 3: Cross multiply
    178,892.80x = 246,769.26 × 111,708.16
  4. Step 4: Simplify right side
    178,892.80x = 27,566,139,979.16
  5. Step 5: Solve for x
    x = 27,566,139,979.16/178,892.80
  6. Step 6: Final answer
    x = 154,093.07

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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.