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Finding the Fourth Proportional to 108,016.70, 161,976.45 and 41,434.70

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Solution

The fourth proportional to 108,016.70, 161,976.45 and 41,434.70 is: 62,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,016.70 : 161,976.45 = 41,434.70 : x
  2. Step 2: Convert to fraction form
    108,016.70/161,976.45 = 41,434.70/x
  3. Step 3: Cross multiply
    108,016.70x = 161,976.45 × 41,434.70
  4. Step 4: Simplify right side
    108,016.70x = 6,711,445,612.82
  5. Step 5: Solve for x
    x = 6,711,445,612.82/108,016.70
  6. Step 6: Final answer
    x = 62,133.41

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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.