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Finding the Fourth Proportional to 129,161.16, 193,741.44 and 35,666.64

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Solution

The fourth proportional to 129,161.16, 193,741.44 and 35,666.64 is: 53,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,161.16 : 193,741.44 = 35,666.64 : x
  2. Step 2: Convert to fraction form
    129,161.16/193,741.44 = 35,666.64/x
  3. Step 3: Cross multiply
    129,161.16x = 193,741.44 × 35,666.64
  4. Step 4: Simplify right side
    129,161.16x = 6,910,106,193.56
  5. Step 5: Solve for x
    x = 6,910,106,193.56/129,161.16
  6. Step 6: Final answer
    x = 53,499.88

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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.