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Finding the Fourth Proportional to 222,139.86, 333,062.16 and 122,347.05

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Solution

The fourth proportional to 222,139.86, 333,062.16 and 122,347.05 is: 183,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,139.86 : 333,062.16 = 122,347.05 : x
  2. Step 2: Convert to fraction form
    222,139.86/333,062.16 = 122,347.05/x
  3. Step 3: Cross multiply
    222,139.86x = 333,062.16 × 122,347.05
  4. Step 4: Simplify right side
    222,139.86x = 40,749,172,742.63
  5. Step 5: Solve for x
    x = 40,749,172,742.63/222,139.86
  6. Step 6: Final answer
    x = 183,439.27

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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.