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Finding the Fourth Proportional to 69,012, 95,197.68 and 45,133.20

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Solution

The fourth proportional to 69,012, 95,197.68 and 45,133.20 is: 62,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012 : 95,197.68 = 45,133.20 : x
  2. Step 2: Convert to fraction form
    69,012/95,197.68 = 45,133.20/x
  3. Step 3: Cross multiply
    69,012x = 95,197.68 × 45,133.20
  4. Step 4: Simplify right side
    69,012x = 4,296,575,930.98
  5. Step 5: Solve for x
    x = 4,296,575,930.98/69,012
  6. Step 6: Final answer
    x = 62,258.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.