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Finding the Fourth Proportional to 165,638.60, 248,522.70 and 60,468.20

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Solution

The fourth proportional to 165,638.60, 248,522.70 and 60,468.20 is: 90,725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,638.60 : 248,522.70 = 60,468.20 : x
  2. Step 2: Convert to fraction form
    165,638.60/248,522.70 = 60,468.20/x
  3. Step 3: Cross multiply
    165,638.60x = 248,522.70 × 60,468.20
  4. Step 4: Simplify right side
    165,638.60x = 15,027,720,328.14
  5. Step 5: Solve for x
    x = 15,027,720,328.14/165,638.60
  6. Step 6: Final answer
    x = 90,725.96

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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.