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Finding the Fourth Proportional to 156,714.48, 235,110.60 and 45,906.48

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Solution

The fourth proportional to 156,714.48, 235,110.60 and 45,906.48 is: 68,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,714.48 : 235,110.60 = 45,906.48 : x
  2. Step 2: Convert to fraction form
    156,714.48/235,110.60 = 45,906.48/x
  3. Step 3: Cross multiply
    156,714.48x = 235,110.60 × 45,906.48
  4. Step 4: Simplify right side
    156,714.48x = 10,793,100,056.69
  5. Step 5: Solve for x
    x = 10,793,100,056.69/156,714.48
  6. Step 6: Final answer
    x = 68,871.11

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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.