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Finding the Fourth Proportional to 222,003.93, 306,360.86 and 121,401.93

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Solution

The fourth proportional to 222,003.93, 306,360.86 and 121,401.93 is: 167,532.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,003.93 : 306,360.86 = 121,401.93 : x
  2. Step 2: Convert to fraction form
    222,003.93/306,360.86 = 121,401.93/x
  3. Step 3: Cross multiply
    222,003.93x = 306,360.86 × 121,401.93
  4. Step 4: Simplify right side
    222,003.93x = 37,192,799,073.45
  5. Step 5: Solve for x
    x = 37,192,799,073.45/222,003.93
  6. Step 6: Final answer
    x = 167,532.17

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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.