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Finding the Fourth Proportional to 375,111.54, 517,653.89 and 203,029.48

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Solution

The fourth proportional to 375,111.54, 517,653.89 and 203,029.48 is: 280,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,111.54 : 517,653.89 = 203,029.48 : x
  2. Step 2: Convert to fraction form
    375,111.54/517,653.89 = 203,029.48/x
  3. Step 3: Cross multiply
    375,111.54x = 517,653.89 × 203,029.48
  4. Step 4: Simplify right side
    375,111.54x = 105,099,000,106.68
  5. Step 5: Solve for x
    x = 105,099,000,106.68/375,111.54
  6. Step 6: Final answer
    x = 280,180.66

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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.