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Finding the Fourth Proportional to 116,760.61, 161,073.71 and 112,233.97

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Solution

The fourth proportional to 116,760.61, 161,073.71 and 112,233.97 is: 154,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,760.61 : 161,073.71 = 112,233.97 : x
  2. Step 2: Convert to fraction form
    116,760.61/161,073.71 = 112,233.97/x
  3. Step 3: Cross multiply
    116,760.61x = 161,073.71 × 112,233.97
  4. Step 4: Simplify right side
    116,760.61x = 18,077,940,972.07
  5. Step 5: Solve for x
    x = 18,077,940,972.07/116,760.61
  6. Step 6: Final answer
    x = 154,829.11

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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.