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Finding the Fourth Proportional to 183,488.92, 274,874.88 and 126,428.28

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Solution

The fourth proportional to 183,488.92, 274,874.88 and 126,428.28 is: 189,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,488.92 : 274,874.88 = 126,428.28 : x
  2. Step 2: Convert to fraction form
    183,488.92/274,874.88 = 126,428.28/x
  3. Step 3: Cross multiply
    183,488.92x = 274,874.88 × 126,428.28
  4. Step 4: Simplify right side
    183,488.92x = 34,751,958,293.61
  5. Step 5: Solve for x
    x = 34,751,958,293.61/183,488.92
  6. Step 6: Final answer
    x = 189,395.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.