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Finding the Fourth Proportional to 262,537.80, 393,806.67 and 75,549.30

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Solution

The fourth proportional to 262,537.80, 393,806.67 and 75,549.30 is: 113,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,537.80 : 393,806.67 = 75,549.30 : x
  2. Step 2: Convert to fraction form
    262,537.80/393,806.67 = 75,549.30/x
  3. Step 3: Cross multiply
    262,537.80x = 393,806.67 × 75,549.30
  4. Step 4: Simplify right side
    262,537.80x = 29,751,818,253.83
  5. Step 5: Solve for x
    x = 29,751,818,253.83/262,537.80
  6. Step 6: Final answer
    x = 113,323.94

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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.