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Finding the Fourth Proportional to 131,259.65, 196,889.46 and 37,765.40

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Solution

The fourth proportional to 131,259.65, 196,889.46 and 37,765.40 is: 56,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,259.65 : 196,889.46 = 37,765.40 : x
  2. Step 2: Convert to fraction form
    131,259.65/196,889.46 = 37,765.40/x
  3. Step 3: Cross multiply
    131,259.65x = 196,889.46 × 37,765.40
  4. Step 4: Simplify right side
    131,259.65x = 7,435,608,228.24
  5. Step 5: Solve for x
    x = 7,435,608,228.24/131,259.65
  6. Step 6: Final answer
    x = 56,648.09

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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.