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Finding the Fourth Proportional to 141,183, 194,876.28 and 90,882

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Solution

The fourth proportional to 141,183, 194,876.28 and 90,882 is: 125,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,183 : 194,876.28 = 90,882 : x
  2. Step 2: Convert to fraction form
    141,183/194,876.28 = 90,882/x
  3. Step 3: Cross multiply
    141,183x = 194,876.28 × 90,882
  4. Step 4: Simplify right side
    141,183x = 17,710,746,078.96
  5. Step 5: Solve for x
    x = 17,710,746,078.96/141,183
  6. Step 6: Final answer
    x = 125,445.32

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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.