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Finding the Fourth Proportional to 119,703.43, 179,948.85 and 111,042.91

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Solution

The fourth proportional to 119,703.43, 179,948.85 and 111,042.91 is: 166,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,703.43 : 179,948.85 = 111,042.91 : x
  2. Step 2: Convert to fraction form
    119,703.43/179,948.85 = 111,042.91/x
  3. Step 3: Cross multiply
    119,703.43x = 179,948.85 × 111,042.91
  4. Step 4: Simplify right side
    119,703.43x = 19,982,043,955.15
  5. Step 5: Solve for x
    x = 19,982,043,955.15/119,703.43
  6. Step 6: Final answer
    x = 166,929.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.