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Finding the Fourth Proportional to 130,245.92, 195,384.70 and 36,751.68

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Solution

The fourth proportional to 130,245.92, 195,384.70 and 36,751.68 is: 55,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,245.92 : 195,384.70 = 36,751.68 : x
  2. Step 2: Convert to fraction form
    130,245.92/195,384.70 = 36,751.68/x
  3. Step 3: Cross multiply
    130,245.92x = 195,384.70 × 36,751.68
  4. Step 4: Simplify right side
    130,245.92x = 7,180,715,971.30
  5. Step 5: Solve for x
    x = 7,180,715,971.30/130,245.92
  6. Step 6: Final answer
    x = 55,131.98

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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.