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Finding the Fourth Proportional to 183,812.30, 275,718.45 and 120,826.70

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Solution

The fourth proportional to 183,812.30, 275,718.45 and 120,826.70 is: 181,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,812.30 : 275,718.45 = 120,826.70 : x
  2. Step 2: Convert to fraction form
    183,812.30/275,718.45 = 120,826.70/x
  3. Step 3: Cross multiply
    183,812.30x = 275,718.45 × 120,826.70
  4. Step 4: Simplify right side
    183,812.30x = 33,314,150,442.62
  5. Step 5: Solve for x
    x = 33,314,150,442.62/183,812.30
  6. Step 6: Final answer
    x = 181,240.05

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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.