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Finding the Fourth Proportional to 318,076.54, 438,939.72 and 174,833.52

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Solution

The fourth proportional to 318,076.54, 438,939.72 and 174,833.52 is: 241,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,076.54 : 438,939.72 = 174,833.52 : x
  2. Step 2: Convert to fraction form
    318,076.54/438,939.72 = 174,833.52/x
  3. Step 3: Cross multiply
    318,076.54x = 438,939.72 × 174,833.52
  4. Step 4: Simplify right side
    318,076.54x = 76,741,376,315.41
  5. Step 5: Solve for x
    x = 76,741,376,315.41/318,076.54
  6. Step 6: Final answer
    x = 241,267.01

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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.