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Finding the Fourth Proportional to 168,446.39, 252,599.41 and 68,538.76

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Solution

The fourth proportional to 168,446.39, 252,599.41 and 68,538.76 is: 102,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,446.39 : 252,599.41 = 68,538.76 : x
  2. Step 2: Convert to fraction form
    168,446.39/252,599.41 = 68,538.76/x
  3. Step 3: Cross multiply
    168,446.39x = 252,599.41 × 68,538.76
  4. Step 4: Simplify right side
    168,446.39x = 17,312,849,792.31
  5. Step 5: Solve for x
    x = 17,312,849,792.31/168,446.39
  6. Step 6: Final answer
    x = 102,779.59

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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.