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Finding the Fourth Proportional to 178,958.50, 246,956.43 and 98,385.45

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Solution

The fourth proportional to 178,958.50, 246,956.43 and 98,385.45 is: 135,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,958.50 : 246,956.43 = 98,385.45 : x
  2. Step 2: Convert to fraction form
    178,958.50/246,956.43 = 98,385.45/x
  3. Step 3: Cross multiply
    178,958.50x = 246,956.43 × 98,385.45
  4. Step 4: Simplify right side
    178,958.50x = 24,296,919,495.94
  5. Step 5: Solve for x
    x = 24,296,919,495.94/178,958.50
  6. Step 6: Final answer
    x = 135,768.46

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1.5x scale

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.