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Finding the Fourth Proportional to 198,625.84, 274,083.13 and 118,037.86

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Solution

The fourth proportional to 198,625.84, 274,083.13 and 118,037.86 is: 162,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,625.84 : 274,083.13 = 118,037.86 : x
  2. Step 2: Convert to fraction form
    198,625.84/274,083.13 = 118,037.86/x
  3. Step 3: Cross multiply
    198,625.84x = 274,083.13 × 118,037.86
  4. Step 4: Simplify right side
    198,625.84x = 32,352,186,127.30
  5. Step 5: Solve for x
    x = 32,352,186,127.30/198,625.84
  6. Step 6: Final answer
    x = 162,880.05

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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.