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Finding the Fourth Proportional to 130,168.80, 194,821.20 and 94,528.80

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Solution

The fourth proportional to 130,168.80, 194,821.20 and 94,528.80 is: 141,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,168.80 : 194,821.20 = 94,528.80 : x
  2. Step 2: Convert to fraction form
    130,168.80/194,821.20 = 94,528.80/x
  3. Step 3: Cross multiply
    130,168.80x = 194,821.20 × 94,528.80
  4. Step 4: Simplify right side
    130,168.80x = 18,416,214,250.56
  5. Step 5: Solve for x
    x = 18,416,214,250.56/130,168.80
  6. Step 6: Final answer
    x = 141,479.48

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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.