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Finding the Fourth Proportional to 119,072.49, 164,335.19 and 68,771.49

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Solution

The fourth proportional to 119,072.49, 164,335.19 and 68,771.49 is: 94,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,072.49 : 164,335.19 = 68,771.49 : x
  2. Step 2: Convert to fraction form
    119,072.49/164,335.19 = 68,771.49/x
  3. Step 3: Cross multiply
    119,072.49x = 164,335.19 × 68,771.49
  4. Step 4: Simplify right side
    119,072.49x = 11,301,575,875.73
  5. Step 5: Solve for x
    x = 11,301,575,875.73/119,072.49
  6. Step 6: Final answer
    x = 94,913.41

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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.