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Finding the Fourth Proportional to 119,440.78, 164,835.08 and 68,461.98

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Solution

The fourth proportional to 119,440.78, 164,835.08 and 68,461.98 is: 94,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,440.78 : 164,835.08 = 68,461.98 : x
  2. Step 2: Convert to fraction form
    119,440.78/164,835.08 = 68,461.98/x
  3. Step 3: Cross multiply
    119,440.78x = 164,835.08 × 68,461.98
  4. Step 4: Simplify right side
    119,440.78x = 11,284,936,444.80
  5. Step 5: Solve for x
    x = 11,284,936,444.80/119,440.78
  6. Step 6: Final answer
    x = 94,481.44

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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.