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Finding the Fourth Proportional to 159,095.98, 219,546.55 and 87,471.74

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Solution

The fourth proportional to 159,095.98, 219,546.55 and 87,471.74 is: 120,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,095.98 : 219,546.55 = 87,471.74 : x
  2. Step 2: Convert to fraction form
    159,095.98/219,546.55 = 87,471.74/x
  3. Step 3: Cross multiply
    159,095.98x = 219,546.55 × 87,471.74
  4. Step 4: Simplify right side
    159,095.98x = 19,204,118,739.50
  5. Step 5: Solve for x
    x = 19,204,118,739.50/159,095.98
  6. Step 6: Final answer
    x = 120,707.76

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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.