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Finding the Fourth Proportional to 107,047.31, 160,461.61 and 69,682.41

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Solution

The fourth proportional to 107,047.31, 160,461.61 and 69,682.41 is: 104,452.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,047.31 : 160,461.61 = 69,682.41 : x
  2. Step 2: Convert to fraction form
    107,047.31/160,461.61 = 69,682.41/x
  3. Step 3: Cross multiply
    107,047.31x = 160,461.61 × 69,682.41
  4. Step 4: Simplify right side
    107,047.31x = 11,181,351,523.07
  5. Step 5: Solve for x
    x = 11,181,351,523.07/107,047.31
  6. Step 6: Final answer
    x = 104,452.43

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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.