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Finding the Fourth Proportional to 199,381.52, 275,135.52 and 113,328.54

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Solution

The fourth proportional to 199,381.52, 275,135.52 and 113,328.54 is: 156,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,381.52 : 275,135.52 = 113,328.54 : x
  2. Step 2: Convert to fraction form
    199,381.52/275,135.52 = 113,328.54/x
  3. Step 3: Cross multiply
    199,381.52x = 275,135.52 × 113,328.54
  4. Step 4: Simplify right side
    199,381.52x = 31,180,706,783.74
  5. Step 5: Solve for x
    x = 31,180,706,783.74/199,381.52
  6. Step 6: Final answer
    x = 156,387.15

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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.