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Finding the Fourth Proportional to 131,682.80, 197,351.40 and 52,732.40

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Solution

The fourth proportional to 131,682.80, 197,351.40 and 52,732.40 is: 79,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,682.80 : 197,351.40 = 52,732.40 : x
  2. Step 2: Convert to fraction form
    131,682.80/197,351.40 = 52,732.40/x
  3. Step 3: Cross multiply
    131,682.80x = 197,351.40 × 52,732.40
  4. Step 4: Simplify right side
    131,682.80x = 10,406,812,965.36
  5. Step 5: Solve for x
    x = 10,406,812,965.36/131,682.80
  6. Step 6: Final answer
    x = 79,029.40

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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.