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Finding the Fourth Proportional to 99,350.70, 148,986.45 and 32,772.30

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Solution

The fourth proportional to 99,350.70, 148,986.45 and 32,772.30 is: 49,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,350.70 : 148,986.45 = 32,772.30 : x
  2. Step 2: Convert to fraction form
    99,350.70/148,986.45 = 32,772.30/x
  3. Step 3: Cross multiply
    99,350.70x = 148,986.45 × 32,772.30
  4. Step 4: Simplify right side
    99,350.70x = 4,882,628,635.34
  5. Step 5: Solve for x
    x = 4,882,628,635.34/99,350.70
  6. Step 6: Final answer
    x = 49,145.39

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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.