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Finding the Fourth Proportional to 122,123.44, 183,203.52 and 43,238.44

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Solution

The fourth proportional to 122,123.44, 183,203.52 and 43,238.44 is: 64,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,123.44 : 183,203.52 = 43,238.44 : x
  2. Step 2: Convert to fraction form
    122,123.44/183,203.52 = 43,238.44/x
  3. Step 3: Cross multiply
    122,123.44x = 183,203.52 × 43,238.44
  4. Step 4: Simplify right side
    122,123.44x = 7,921,434,407.31
  5. Step 5: Solve for x
    x = 7,921,434,407.31/122,123.44
  6. Step 6: Final answer
    x = 64,864.16

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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.