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Finding the Fourth Proportional to 222,183, 306,612.58 and 121,581

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Solution

The fourth proportional to 222,183, 306,612.58 and 121,581 is: 167,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,183 : 306,612.58 = 121,581 : x
  2. Step 2: Convert to fraction form
    222,183/306,612.58 = 121,581/x
  3. Step 3: Cross multiply
    222,183x = 306,612.58 × 121,581
  4. Step 4: Simplify right side
    222,183x = 37,278,264,088.98
  5. Step 5: Solve for x
    x = 37,278,264,088.98/222,183
  6. Step 6: Final answer
    x = 167,781.80

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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.