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Finding the Fourth Proportional to 206,870.60, 310,305.90 and 184,563.20

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Solution

The fourth proportional to 206,870.60, 310,305.90 and 184,563.20 is: 276,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,870.60 : 310,305.90 = 184,563.20 : x
  2. Step 2: Convert to fraction form
    206,870.60/310,305.90 = 184,563.20/x
  3. Step 3: Cross multiply
    206,870.60x = 310,305.90 × 184,563.20
  4. Step 4: Simplify right side
    206,870.60x = 57,271,049,882.88
  5. Step 5: Solve for x
    x = 57,271,049,882.88/206,870.60
  6. Step 6: Final answer
    x = 276,844.80

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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.