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Finding the Fourth Proportional to 104,990.63, 157,501.80 and 33,889.50

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Solution

The fourth proportional to 104,990.63, 157,501.80 and 33,889.50 is: 50,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,990.63 : 157,501.80 = 33,889.50 : x
  2. Step 2: Convert to fraction form
    104,990.63/157,501.80 = 33,889.50/x
  3. Step 3: Cross multiply
    104,990.63x = 157,501.80 × 33,889.50
  4. Step 4: Simplify right side
    104,990.63x = 5,337,657,251.10
  5. Step 5: Solve for x
    x = 5,337,657,251.10/104,990.63
  6. Step 6: Final answer
    x = 50,839.37

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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.