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Finding the Fourth Proportional to 178,908.81, 246,898.85 and 98,338.47

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Solution

The fourth proportional to 178,908.81, 246,898.85 and 98,338.47 is: 135,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,908.81 : 246,898.85 = 98,338.47 : x
  2. Step 2: Convert to fraction form
    178,908.81/246,898.85 = 98,338.47/x
  3. Step 3: Cross multiply
    178,908.81x = 246,898.85 × 98,338.47
  4. Step 4: Simplify right side
    178,908.81x = 24,279,654,662.07
  5. Step 5: Solve for x
    x = 24,279,654,662.07/178,908.81
  6. Step 6: Final answer
    x = 135,709.66

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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.