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Finding the Fourth Proportional to 198,754.51, 274,256.26 and 134,363.82

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Solution

The fourth proportional to 198,754.51, 274,256.26 and 134,363.82 is: 185,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,754.51 : 274,256.26 = 134,363.82 : x
  2. Step 2: Convert to fraction form
    198,754.51/274,256.26 = 134,363.82/x
  3. Step 3: Cross multiply
    198,754.51x = 274,256.26 × 134,363.82
  4. Step 4: Simplify right side
    198,754.51x = 36,850,118,752.51
  5. Step 5: Solve for x
    x = 36,850,118,752.51/198,754.51
  6. Step 6: Final answer
    x = 185,405.20

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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.