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Finding the Fourth Proportional to 178,950.78, 246,956.79 and 98,380.34

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Solution

The fourth proportional to 178,950.78, 246,956.79 and 98,380.34 is: 135,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,950.78 : 246,956.79 = 98,380.34 : x
  2. Step 2: Convert to fraction form
    178,950.78/246,956.79 = 98,380.34/x
  3. Step 3: Cross multiply
    178,950.78x = 246,956.79 × 98,380.34
  4. Step 4: Simplify right side
    178,950.78x = 24,295,692,965.51
  5. Step 5: Solve for x
    x = 24,295,692,965.51/178,950.78
  6. Step 6: Final answer
    x = 135,767.46

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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.