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Finding the Fourth Proportional to 206,928.60, 310,392.90 and 184,621.20

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Solution

The fourth proportional to 206,928.60, 310,392.90 and 184,621.20 is: 276,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,928.60 : 310,392.90 = 184,621.20 : x
  2. Step 2: Convert to fraction form
    206,928.60/310,392.90 = 184,621.20/x
  3. Step 3: Cross multiply
    206,928.60x = 310,392.90 × 184,621.20
  4. Step 4: Simplify right side
    206,928.60x = 57,305,109,669.48
  5. Step 5: Solve for x
    x = 57,305,109,669.48/206,928.60
  6. Step 6: Final answer
    x = 276,931.80

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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.