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Finding the Fourth Proportional to 165,687.40, 248,531.10 and 60,492.70

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Solution

The fourth proportional to 165,687.40, 248,531.10 and 60,492.70 is: 90,739.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,687.40 : 248,531.10 = 60,492.70 : x
  2. Step 2: Convert to fraction form
    165,687.40/248,531.10 = 60,492.70/x
  3. Step 3: Cross multiply
    165,687.40x = 248,531.10 × 60,492.70
  4. Step 4: Simplify right side
    165,687.40x = 15,034,317,272.97
  5. Step 5: Solve for x
    x = 15,034,317,272.97/165,687.40
  6. Step 6: Final answer
    x = 90,739.05

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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.