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Finding the Fourth Proportional to 206,943.60, 310,415.40 and 184,636.20

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Solution

The fourth proportional to 206,943.60, 310,415.40 and 184,636.20 is: 276,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,943.60 : 310,415.40 = 184,636.20 : x
  2. Step 2: Convert to fraction form
    206,943.60/310,415.40 = 184,636.20/x
  3. Step 3: Cross multiply
    206,943.60x = 310,415.40 × 184,636.20
  4. Step 4: Simplify right side
    206,943.60x = 57,313,919,877.48
  5. Step 5: Solve for x
    x = 57,313,919,877.48/206,943.60
  6. Step 6: Final answer
    x = 276,954.30

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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.