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Finding the Fourth Proportional to 130,022.80, 195,034.20 and 67,037.20

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Solution

The fourth proportional to 130,022.80, 195,034.20 and 67,037.20 is: 100,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,022.80 : 195,034.20 = 67,037.20 : x
  2. Step 2: Convert to fraction form
    130,022.80/195,034.20 = 67,037.20/x
  3. Step 3: Cross multiply
    130,022.80x = 195,034.20 × 67,037.20
  4. Step 4: Simplify right side
    130,022.80x = 13,074,546,672.24
  5. Step 5: Solve for x
    x = 13,074,546,672.24/130,022.80
  6. Step 6: Final answer
    x = 100,555.80

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1.5x scale

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.