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Finding the Fourth Proportional to 168,906.60, 253,398.30 and 98,749.80

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Solution

The fourth proportional to 168,906.60, 253,398.30 and 98,749.80 is: 148,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,906.60 : 253,398.30 = 98,749.80 : x
  2. Step 2: Convert to fraction form
    168,906.60/253,398.30 = 98,749.80/x
  3. Step 3: Cross multiply
    168,906.60x = 253,398.30 × 98,749.80
  4. Step 4: Simplify right side
    168,906.60x = 25,023,031,445.34
  5. Step 5: Solve for x
    x = 25,023,031,445.34/168,906.60
  6. Step 6: Final answer
    x = 148,147.15

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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.