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Finding the Fourth Proportional to 130,990.64, 196,524.83 and 60,954.80

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Solution

The fourth proportional to 130,990.64, 196,524.83 and 60,954.80 is: 91,450.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,990.64 : 196,524.83 = 60,954.80 : x
  2. Step 2: Convert to fraction form
    130,990.64/196,524.83 = 60,954.80/x
  3. Step 3: Cross multiply
    130,990.64x = 196,524.83 × 60,954.80
  4. Step 4: Simplify right side
    130,990.64x = 11,979,130,877.45
  5. Step 5: Solve for x
    x = 11,979,130,877.45/130,990.64
  6. Step 6: Final answer
    x = 91,450.28

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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.