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Finding the Fourth Proportional to 262,427.72, 393,647.58 and 93,959.48

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Solution

The fourth proportional to 262,427.72, 393,647.58 and 93,959.48 is: 140,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,427.72 : 393,647.58 = 93,959.48 : x
  2. Step 2: Convert to fraction form
    262,427.72/393,647.58 = 93,959.48/x
  3. Step 3: Cross multiply
    262,427.72x = 393,647.58 × 93,959.48
  4. Step 4: Simplify right side
    262,427.72x = 36,986,921,920.06
  5. Step 5: Solve for x
    x = 36,986,921,920.06/262,427.72
  6. Step 6: Final answer
    x = 140,941.37

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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.