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Finding the Fourth Proportional to 245,885.90, 368,701.94 and 112,651.97

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Solution

The fourth proportional to 245,885.90, 368,701.94 and 112,651.97 is: 168,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,885.90 : 368,701.94 = 112,651.97 : x
  2. Step 2: Convert to fraction form
    245,885.90/368,701.94 = 112,651.97/x
  3. Step 3: Cross multiply
    245,885.90x = 368,701.94 × 112,651.97
  4. Step 4: Simplify right side
    245,885.90x = 41,534,998,321.94
  5. Step 5: Solve for x
    x = 41,534,998,321.94/245,885.90
  6. Step 6: Final answer
    x = 168,919.81

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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.