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Finding the Fourth Proportional to 156,654.72, 234,973.80 and 96,694.56

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Solution

The fourth proportional to 156,654.72, 234,973.80 and 96,694.56 is: 145,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,654.72 : 234,973.80 = 96,694.56 : x
  2. Step 2: Convert to fraction form
    156,654.72/234,973.80 = 96,694.56/x
  3. Step 3: Cross multiply
    156,654.72x = 234,973.80 × 96,694.56
  4. Step 4: Simplify right side
    156,654.72x = 22,720,688,202.53
  5. Step 5: Solve for x
    x = 22,720,688,202.53/156,654.72
  6. Step 6: Final answer
    x = 145,036.73

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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.