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Finding the Fourth Proportional to 197,957.10, 297,008.55 and 79,713.30

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Solution

The fourth proportional to 197,957.10, 297,008.55 and 79,713.30 is: 119,599.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,957.10 : 297,008.55 = 79,713.30 : x
  2. Step 2: Convert to fraction form
    197,957.10/297,008.55 = 79,713.30/x
  3. Step 3: Cross multiply
    197,957.10x = 297,008.55 × 79,713.30
  4. Step 4: Simplify right side
    197,957.10x = 23,675,531,648.72
  5. Step 5: Solve for x
    x = 23,675,531,648.72/197,957.10
  6. Step 6: Final answer
    x = 119,599.31

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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.