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Finding the Fourth Proportional to 125,874.64, 173,711.26 and 68,516.04

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Solution

The fourth proportional to 125,874.64, 173,711.26 and 68,516.04 is: 94,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.64 : 173,711.26 = 68,516.04 : x
  2. Step 2: Convert to fraction form
    125,874.64/173,711.26 = 68,516.04/x
  3. Step 3: Cross multiply
    125,874.64x = 173,711.26 × 68,516.04
  4. Step 4: Simplify right side
    125,874.64x = 11,902,007,638.61
  5. Step 5: Solve for x
    x = 11,902,007,638.61/125,874.64
  6. Step 6: Final answer
    x = 94,554.45

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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.