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Finding the Fourth Proportional to 363,639.16, 545,516.45 and 110,861.75

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Solution

The fourth proportional to 363,639.16, 545,516.45 and 110,861.75 is: 166,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,639.16 : 545,516.45 = 110,861.75 : x
  2. Step 2: Convert to fraction form
    363,639.16/545,516.45 = 110,861.75/x
  3. Step 3: Cross multiply
    363,639.16x = 545,516.45 × 110,861.75
  4. Step 4: Simplify right side
    363,639.16x = 60,476,908,300.79
  5. Step 5: Solve for x
    x = 60,476,908,300.79/363,639.16
  6. Step 6: Final answer
    x = 166,310.22

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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.