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Finding the Fourth Proportional to 159,573.65, 220,212.08 and 87,953.96

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Solution

The fourth proportional to 159,573.65, 220,212.08 and 87,953.96 is: 121,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,573.65 : 220,212.08 = 87,953.96 : x
  2. Step 2: Convert to fraction form
    159,573.65/220,212.08 = 87,953.96/x
  3. Step 3: Cross multiply
    159,573.65x = 220,212.08 × 87,953.96
  4. Step 4: Simplify right side
    159,573.65x = 19,368,524,172.47
  5. Step 5: Solve for x
    x = 19,368,524,172.47/159,573.65
  6. Step 6: Final answer
    x = 121,376.71

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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.