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Finding the Fourth Proportional to 123,835.34, 170,893.71 and 67,246.71

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Solution

The fourth proportional to 123,835.34, 170,893.71 and 67,246.71 is: 92,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,835.34 : 170,893.71 = 67,246.71 : x
  2. Step 2: Convert to fraction form
    123,835.34/170,893.71 = 67,246.71/x
  3. Step 3: Cross multiply
    123,835.34x = 170,893.71 × 67,246.71
  4. Step 4: Simplify right side
    123,835.34x = 11,492,039,757.19
  5. Step 5: Solve for x
    x = 11,492,039,757.19/123,835.34
  6. Step 6: Final answer
    x = 92,800.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.