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Finding the Fourth Proportional to 197,612.64, 296,456.40 and 79,293.30

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Solution

The fourth proportional to 197,612.64, 296,456.40 and 79,293.30 is: 118,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,612.64 : 296,456.40 = 79,293.30 : x
  2. Step 2: Convert to fraction form
    197,612.64/296,456.40 = 79,293.30/x
  3. Step 3: Cross multiply
    197,612.64x = 296,456.40 × 79,293.30
  4. Step 4: Simplify right side
    197,612.64x = 23,507,006,262.12
  5. Step 5: Solve for x
    x = 23,507,006,262.12/197,612.64
  6. Step 6: Final answer
    x = 118,954.97

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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.