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Finding the Fourth Proportional to 262,644.96, 393,934.56 and 73,119.60

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Solution

The fourth proportional to 262,644.96, 393,934.56 and 73,119.60 is: 109,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,644.96 : 393,934.56 = 73,119.60 : x
  2. Step 2: Convert to fraction form
    262,644.96/393,934.56 = 73,119.60/x
  3. Step 3: Cross multiply
    262,644.96x = 393,934.56 × 73,119.60
  4. Step 4: Simplify right side
    262,644.96x = 28,804,337,453.38
  5. Step 5: Solve for x
    x = 28,804,337,453.38/262,644.96
  6. Step 6: Final answer
    x = 109,670.25

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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.