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Finding the Fourth Proportional to 198,892.68, 274,402.65 and 112,841.52

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Solution

The fourth proportional to 198,892.68, 274,402.65 and 112,841.52 is: 155,682.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,892.68 : 274,402.65 = 112,841.52 : x
  2. Step 2: Convert to fraction form
    198,892.68/274,402.65 = 112,841.52/x
  3. Step 3: Cross multiply
    198,892.68x = 274,402.65 × 112,841.52
  4. Step 4: Simplify right side
    198,892.68x = 30,964,012,118.03
  5. Step 5: Solve for x
    x = 30,964,012,118.03/198,892.68
  6. Step 6: Final answer
    x = 155,682.01

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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.