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Finding the Fourth Proportional to 104,956.72, 157,390.10 and 48,790.97

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Solution

The fourth proportional to 104,956.72, 157,390.10 and 48,790.97 is: 73,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,956.72 : 157,390.10 = 48,790.97 : x
  2. Step 2: Convert to fraction form
    104,956.72/157,390.10 = 48,790.97/x
  3. Step 3: Cross multiply
    104,956.72x = 157,390.10 × 48,790.97
  4. Step 4: Simplify right side
    104,956.72x = 7,679,215,389.67
  5. Step 5: Solve for x
    x = 7,679,215,389.67/104,956.72
  6. Step 6: Final answer
    x = 73,165.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.