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Finding the Fourth Proportional to 368,509.34, 552,414.09 and 144,013.79

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Solution

The fourth proportional to 368,509.34, 552,414.09 and 144,013.79 is: 215,883.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,509.34 : 552,414.09 = 144,013.79 : x
  2. Step 2: Convert to fraction form
    368,509.34/552,414.09 = 144,013.79/x
  3. Step 3: Cross multiply
    368,509.34x = 552,414.09 × 144,013.79
  4. Step 4: Simplify right side
    368,509.34x = 79,555,246,750.30
  5. Step 5: Solve for x
    x = 79,555,246,750.30/368,509.34
  6. Step 6: Final answer
    x = 215,883.94

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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.