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Finding the Fourth Proportional to 222,560.48, 307,123.44 and 121,956.32

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Solution

The fourth proportional to 222,560.48, 307,123.44 and 121,956.32 is: 168,294.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,560.48 : 307,123.44 = 121,956.32 : x
  2. Step 2: Convert to fraction form
    222,560.48/307,123.44 = 121,956.32/x
  3. Step 3: Cross multiply
    222,560.48x = 307,123.44 × 121,956.32
  4. Step 4: Simplify right side
    222,560.48x = 37,455,644,528.14
  5. Step 5: Solve for x
    x = 37,455,644,528.14/222,560.48
  6. Step 6: Final answer
    x = 168,294.23

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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.