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Finding the Fourth Proportional to 130,015.20, 195,022.80 and 95,023.20

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Solution

The fourth proportional to 130,015.20, 195,022.80 and 95,023.20 is: 142,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.20 : 195,022.80 = 95,023.20 : x
  2. Step 2: Convert to fraction form
    130,015.20/195,022.80 = 95,023.20/x
  3. Step 3: Cross multiply
    130,015.20x = 195,022.80 × 95,023.20
  4. Step 4: Simplify right side
    130,015.20x = 18,531,690,528.96
  5. Step 5: Solve for x
    x = 18,531,690,528.96/130,015.20
  6. Step 6: Final answer
    x = 142,534.80

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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.