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Finding the Fourth Proportional to 254,687.60, 382,204.20 and 165,724.40

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Solution

The fourth proportional to 254,687.60, 382,204.20 and 165,724.40 is: 248,699.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,687.60 : 382,204.20 = 165,724.40 : x
  2. Step 2: Convert to fraction form
    254,687.60/382,204.20 = 165,724.40/x
  3. Step 3: Cross multiply
    254,687.60x = 382,204.20 × 165,724.40
  4. Step 4: Simplify right side
    254,687.60x = 63,340,561,722.48
  5. Step 5: Solve for x
    x = 63,340,561,722.48/254,687.60
  6. Step 6: Final answer
    x = 248,699.04

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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.