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Finding the Fourth Proportional to 107,495.66, 161,247.15 and 28,609.97

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Solution

The fourth proportional to 107,495.66, 161,247.15 and 28,609.97 is: 42,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,495.66 : 161,247.15 = 28,609.97 : x
  2. Step 2: Convert to fraction form
    107,495.66/161,247.15 = 28,609.97/x
  3. Step 3: Cross multiply
    107,495.66x = 161,247.15 × 28,609.97
  4. Step 4: Simplify right side
    107,495.66x = 4,613,275,317.85
  5. Step 5: Solve for x
    x = 4,613,275,317.85/107,495.66
  6. Step 6: Final answer
    x = 42,915.92

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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.