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Finding the Fourth Proportional to 222,999.38, 307,739.31 and 121,024.82

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Solution

The fourth proportional to 222,999.38, 307,739.31 and 121,024.82 is: 167,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,999.38 : 307,739.31 = 121,024.82 : x
  2. Step 2: Convert to fraction form
    222,999.38/307,739.31 = 121,024.82/x
  3. Step 3: Cross multiply
    222,999.38x = 307,739.31 × 121,024.82
  4. Step 4: Simplify right side
    222,999.38x = 37,244,094,599.67
  5. Step 5: Solve for x
    x = 37,244,094,599.67/222,999.38
  6. Step 6: Final answer
    x = 167,014.34

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1.5x scale

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.