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Finding the Fourth Proportional to 131,166.59, 196,727.87 and 36,406.40

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Solution

The fourth proportional to 131,166.59, 196,727.87 and 36,406.40 is: 54,603.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,166.59 : 196,727.87 = 36,406.40 : x
  2. Step 2: Convert to fraction form
    131,166.59/196,727.87 = 36,406.40/x
  3. Step 3: Cross multiply
    131,166.59x = 196,727.87 × 36,406.40
  4. Step 4: Simplify right side
    131,166.59x = 7,162,152,428.96
  5. Step 5: Solve for x
    x = 7,162,152,428.96/131,166.59
  6. Step 6: Final answer
    x = 54,603.48

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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.