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Finding the Fourth Proportional to 107,840.40, 161,731.80 and 32,960.40

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Solution

The fourth proportional to 107,840.40, 161,731.80 and 32,960.40 is: 49,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,840.40 : 161,731.80 = 32,960.40 : x
  2. Step 2: Convert to fraction form
    107,840.40/161,731.80 = 32,960.40/x
  3. Step 3: Cross multiply
    107,840.40x = 161,731.80 × 32,960.40
  4. Step 4: Simplify right side
    107,840.40x = 5,330,744,820.72
  5. Step 5: Solve for x
    x = 5,330,744,820.72/107,840.40
  6. Step 6: Final answer
    x = 49,431.80

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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.