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Finding the Fourth Proportional to 159,265.37, 219,795.29 and 91,293.65

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Solution

The fourth proportional to 159,265.37, 219,795.29 and 91,293.65 is: 125,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,265.37 : 219,795.29 = 91,293.65 : x
  2. Step 2: Convert to fraction form
    159,265.37/219,795.29 = 91,293.65/x
  3. Step 3: Cross multiply
    159,265.37x = 219,795.29 × 91,293.65
  4. Step 4: Simplify right side
    159,265.37x = 20,065,913,888.05
  5. Step 5: Solve for x
    x = 20,065,913,888.05/159,265.37
  6. Step 6: Final answer
    x = 125,990.44

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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.