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Finding the Fourth Proportional to 131,653.60, 197,369.16 and 52,724.56

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Solution

The fourth proportional to 131,653.60, 197,369.16 and 52,724.56 is: 79,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,653.60 : 197,369.16 = 52,724.56 : x
  2. Step 2: Convert to fraction form
    131,653.60/197,369.16 = 52,724.56/x
  3. Step 3: Cross multiply
    131,653.60x = 197,369.16 × 52,724.56
  4. Step 4: Simplify right side
    131,653.60x = 10,406,202,118.57
  5. Step 5: Solve for x
    x = 10,406,202,118.57/131,653.60
  6. Step 6: Final answer
    x = 79,042.29

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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.