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Finding the Fourth Proportional to 254,679.60, 382,192.20 and 165,716.40

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Solution

The fourth proportional to 254,679.60, 382,192.20 and 165,716.40 is: 248,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,679.60 : 382,192.20 = 165,716.40 : x
  2. Step 2: Convert to fraction form
    254,679.60/382,192.20 = 165,716.40/x
  3. Step 3: Cross multiply
    254,679.60x = 382,192.20 × 165,716.40
  4. Step 4: Simplify right side
    254,679.60x = 63,335,515,492.08
  5. Step 5: Solve for x
    x = 63,335,515,492.08/254,679.60
  6. Step 6: Final answer
    x = 248,687.04

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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.