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Finding the Fourth Proportional to 240,553.44, 331,955.51 and 133,128

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Solution

The fourth proportional to 240,553.44, 331,955.51 and 133,128 is: 183,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,553.44 : 331,955.51 = 133,128 : x
  2. Step 2: Convert to fraction form
    240,553.44/331,955.51 = 133,128/x
  3. Step 3: Cross multiply
    240,553.44x = 331,955.51 × 133,128
  4. Step 4: Simplify right side
    240,553.44x = 44,192,573,135.28
  5. Step 5: Solve for x
    x = 44,192,573,135.28/240,553.44
  6. Step 6: Final answer
    x = 183,712.08

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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.