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Finding the Fourth Proportional to 107,479.29, 161,216.20 and 28,594.20

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Solution

The fourth proportional to 107,479.29, 161,216.20 and 28,594.20 is: 42,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,479.29 : 161,216.20 = 28,594.20 : x
  2. Step 2: Convert to fraction form
    107,479.29/161,216.20 = 28,594.20/x
  3. Step 3: Cross multiply
    107,479.29x = 161,216.20 × 28,594.20
  4. Step 4: Simplify right side
    107,479.29x = 4,609,848,266.04
  5. Step 5: Solve for x
    x = 4,609,848,266.04/107,479.29
  6. Step 6: Final answer
    x = 42,890.57

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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.