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Finding the Fourth Proportional to 617,894, 926,813.18 and 168,613.32

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Solution

The fourth proportional to 617,894, 926,813.18 and 168,613.32 is: 252,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,894 : 926,813.18 = 168,613.32 : x
  2. Step 2: Convert to fraction form
    617,894/926,813.18 = 168,613.32/x
  3. Step 3: Cross multiply
    617,894x = 926,813.18 × 168,613.32
  4. Step 4: Simplify right side
    617,894x = 156,273,047,299.56
  5. Step 5: Solve for x
    x = 156,273,047,299.56/617,894
  6. Step 6: Final answer
    x = 252,912.39

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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.