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Finding the Fourth Proportional to 125,568.94, 173,293.60 and 68,980.90

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Solution

The fourth proportional to 125,568.94, 173,293.60 and 68,980.90 is: 95,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,568.94 : 173,293.60 = 68,980.90 : x
  2. Step 2: Convert to fraction form
    125,568.94/173,293.60 = 68,980.90/x
  3. Step 3: Cross multiply
    125,568.94x = 173,293.60 × 68,980.90
  4. Step 4: Simplify right side
    125,568.94x = 11,953,948,492.24
  5. Step 5: Solve for x
    x = 11,953,948,492.24/125,568.94
  6. Step 6: Final answer
    x = 95,198.29

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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.