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Finding the Fourth Proportional to 100,764.98, 150,981.39 and 58,526.49

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Solution

The fourth proportional to 100,764.98, 150,981.39 and 58,526.49 is: 87,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,764.98 : 150,981.39 = 58,526.49 : x
  2. Step 2: Convert to fraction form
    100,764.98/150,981.39 = 58,526.49/x
  3. Step 3: Cross multiply
    100,764.98x = 150,981.39 × 58,526.49
  4. Step 4: Simplify right side
    100,764.98x = 8,836,410,812.02
  5. Step 5: Solve for x
    x = 8,836,410,812.02/100,764.98
  6. Step 6: Final answer
    x = 87,693.27

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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.