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Finding the Fourth Proportional to 154,027.46, 212,469.17 and 92,730.98

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Solution

The fourth proportional to 154,027.46, 212,469.17 and 92,730.98 is: 127,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,027.46 : 212,469.17 = 92,730.98 : x
  2. Step 2: Convert to fraction form
    154,027.46/212,469.17 = 92,730.98/x
  3. Step 3: Cross multiply
    154,027.46x = 212,469.17 × 92,730.98
  4. Step 4: Simplify right side
    154,027.46x = 19,702,472,827.89
  5. Step 5: Solve for x
    x = 19,702,472,827.89/154,027.46
  6. Step 6: Final answer
    x = 127,915.33

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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.