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Finding the Fourth Proportional to 86,526, 129,803.04 and 33,906.96

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Solution

The fourth proportional to 86,526, 129,803.04 and 33,906.96 is: 50,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,526 : 129,803.04 = 33,906.96 : x
  2. Step 2: Convert to fraction form
    86,526/129,803.04 = 33,906.96/x
  3. Step 3: Cross multiply
    86,526x = 129,803.04 × 33,906.96
  4. Step 4: Simplify right side
    86,526x = 4,401,226,485.16
  5. Step 5: Solve for x
    x = 4,401,226,485.16/86,526
  6. Step 6: Final answer
    x = 50,865.94

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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.