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Finding the Fourth Proportional to 222,959.09, 307,939.08 and 146,818.58

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Solution

The fourth proportional to 222,959.09, 307,939.08 and 146,818.58 is: 202,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,959.09 : 307,939.08 = 146,818.58 : x
  2. Step 2: Convert to fraction form
    222,959.09/307,939.08 = 146,818.58/x
  3. Step 3: Cross multiply
    222,959.09x = 307,939.08 × 146,818.58
  4. Step 4: Simplify right side
    222,959.09x = 45,211,178,452.11
  5. Step 5: Solve for x
    x = 45,211,178,452.11/222,959.09
  6. Step 6: Final answer
    x = 202,777.91

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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.