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Finding the Fourth Proportional to 107,367.48, 161,059.32 and 28,479.96

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Solution

The fourth proportional to 107,367.48, 161,059.32 and 28,479.96 is: 42,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,367.48 : 161,059.32 = 28,479.96 : x
  2. Step 2: Convert to fraction form
    107,367.48/161,059.32 = 28,479.96/x
  3. Step 3: Cross multiply
    107,367.48x = 161,059.32 × 28,479.96
  4. Step 4: Simplify right side
    107,367.48x = 4,586,962,991.23
  5. Step 5: Solve for x
    x = 4,586,962,991.23/107,367.48
  6. Step 6: Final answer
    x = 42,722.09

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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.