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Finding the Fourth Proportional to 372,109.92, 557,460.59 and 219,851.67

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Solution

The fourth proportional to 372,109.92, 557,460.59 and 219,851.67 is: 329,361.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,109.92 : 557,460.59 = 219,851.67 : x
  2. Step 2: Convert to fraction form
    372,109.92/557,460.59 = 219,851.67/x
  3. Step 3: Cross multiply
    372,109.92x = 557,460.59 × 219,851.67
  4. Step 4: Simplify right side
    372,109.92x = 122,558,638,333.75
  5. Step 5: Solve for x
    x = 122,558,638,333.75/372,109.92
  6. Step 6: Final answer
    x = 329,361.38

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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.