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Finding the Fourth Proportional to 130,044.40, 194,932.20 and 70,754.80

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Solution

The fourth proportional to 130,044.40, 194,932.20 and 70,754.80 is: 106,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,044.40 : 194,932.20 = 70,754.80 : x
  2. Step 2: Convert to fraction form
    130,044.40/194,932.20 = 70,754.80/x
  3. Step 3: Cross multiply
    130,044.40x = 194,932.20 × 70,754.80
  4. Step 4: Simplify right side
    130,044.40x = 13,792,388,824.56
  5. Step 5: Solve for x
    x = 13,792,388,824.56/130,044.40
  6. Step 6: Final answer
    x = 106,059.08

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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.