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Finding the Fourth Proportional to 162,687.60, 243,556.20 and 116,031.60

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Solution

The fourth proportional to 162,687.60, 243,556.20 and 116,031.60 is: 173,708.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,687.60 : 243,556.20 = 116,031.60 : x
  2. Step 2: Convert to fraction form
    162,687.60/243,556.20 = 116,031.60/x
  3. Step 3: Cross multiply
    162,687.60x = 243,556.20 × 116,031.60
  4. Step 4: Simplify right side
    162,687.60x = 28,260,215,575.92
  5. Step 5: Solve for x
    x = 28,260,215,575.92/162,687.60
  6. Step 6: Final answer
    x = 173,708.48

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1.5x scale

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.