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Finding the Fourth Proportional to 295,412.40, 443,196.36 and 85,067.28

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Solution

The fourth proportional to 295,412.40, 443,196.36 and 85,067.28 is: 127,623.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,412.40 : 443,196.36 = 85,067.28 : x
  2. Step 2: Convert to fraction form
    295,412.40/443,196.36 = 85,067.28/x
  3. Step 3: Cross multiply
    295,412.40x = 443,196.36 × 85,067.28
  4. Step 4: Simplify right side
    295,412.40x = 37,701,508,851.10
  5. Step 5: Solve for x
    x = 37,701,508,851.10/295,412.40
  6. Step 6: Final answer
    x = 127,623.31

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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.