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Finding the Fourth Proportional to 435,732.72, 653,597.78 and 115,884.32

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Solution

The fourth proportional to 435,732.72, 653,597.78 and 115,884.32 is: 173,826.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,732.72 : 653,597.78 = 115,884.32 : x
  2. Step 2: Convert to fraction form
    435,732.72/653,597.78 = 115,884.32/x
  3. Step 3: Cross multiply
    435,732.72x = 653,597.78 × 115,884.32
  4. Step 4: Simplify right side
    435,732.72x = 75,741,733,709.39
  5. Step 5: Solve for x
    x = 75,741,733,709.39/435,732.72
  6. Step 6: Final answer
    x = 173,826.13

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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.