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Finding the Fourth Proportional to 197,711.58, 296,565.08 and 79,380.84

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Solution

The fourth proportional to 197,711.58, 296,565.08 and 79,380.84 is: 119,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,711.58 : 296,565.08 = 79,380.84 : x
  2. Step 2: Convert to fraction form
    197,711.58/296,565.08 = 79,380.84/x
  3. Step 3: Cross multiply
    197,711.58x = 296,565.08 × 79,380.84
  4. Step 4: Simplify right side
    197,711.58x = 23,541,584,768.16
  5. Step 5: Solve for x
    x = 23,541,584,768.16/197,711.58
  6. Step 6: Final answer
    x = 119,070.34

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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.