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Finding the Fourth Proportional to 156,173.76, 215,522.40 and 95,720.64

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Solution

The fourth proportional to 156,173.76, 215,522.40 and 95,720.64 is: 132,096.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,173.76 : 215,522.40 = 95,720.64 : x
  2. Step 2: Convert to fraction form
    156,173.76/215,522.40 = 95,720.64/x
  3. Step 3: Cross multiply
    156,173.76x = 215,522.40 × 95,720.64
  4. Step 4: Simplify right side
    156,173.76x = 20,629,942,062.34
  5. Step 5: Solve for x
    x = 20,629,942,062.34/156,173.76
  6. Step 6: Final answer
    x = 132,096.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.