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Finding the Fourth Proportional to 125,874.22, 173,707.59 and 69,286

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Solution

The fourth proportional to 125,874.22, 173,707.59 and 69,286 is: 95,615.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.22 : 173,707.59 = 69,286 : x
  2. Step 2: Convert to fraction form
    125,874.22/173,707.59 = 69,286/x
  3. Step 3: Cross multiply
    125,874.22x = 173,707.59 × 69,286
  4. Step 4: Simplify right side
    125,874.22x = 12,035,504,080.74
  5. Step 5: Solve for x
    x = 12,035,504,080.74/125,874.22
  6. Step 6: Final answer
    x = 95,615.32

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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.