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Finding the Fourth Proportional to 295,779, 443,772.18 and 129,579.96

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Solution

The fourth proportional to 295,779, 443,772.18 and 129,579.96 is: 194,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,779 : 443,772.18 = 129,579.96 : x
  2. Step 2: Convert to fraction form
    295,779/443,772.18 = 129,579.96/x
  3. Step 3: Cross multiply
    295,779x = 443,772.18 × 129,579.96
  4. Step 4: Simplify right side
    295,779x = 57,503,981,333.51
  5. Step 5: Solve for x
    x = 57,503,981,333.51/295,779
  6. Step 6: Final answer
    x = 194,415.36

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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.