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Finding the Fourth Proportional to 438,796.75, 658,195.13 and 106,372.75

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Solution

The fourth proportional to 438,796.75, 658,195.13 and 106,372.75 is: 159,559.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,796.75 : 658,195.13 = 106,372.75 : x
  2. Step 2: Convert to fraction form
    438,796.75/658,195.13 = 106,372.75/x
  3. Step 3: Cross multiply
    438,796.75x = 658,195.13 × 106,372.75
  4. Step 4: Simplify right side
    438,796.75x = 70,014,026,014.71
  5. Step 5: Solve for x
    x = 70,014,026,014.71/438,796.75
  6. Step 6: Final answer
    x = 159,559.13

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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.