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Finding the Fourth Proportional to 360,127.99, 540,219.32 and 107,388.70

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Solution

The fourth proportional to 360,127.99, 540,219.32 and 107,388.70 is: 161,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,127.99 : 540,219.32 = 107,388.70 : x
  2. Step 2: Convert to fraction form
    360,127.99/540,219.32 = 107,388.70/x
  3. Step 3: Cross multiply
    360,127.99x = 540,219.32 × 107,388.70
  4. Step 4: Simplify right side
    360,127.99x = 58,013,450,489.68
  5. Step 5: Solve for x
    x = 58,013,450,489.68/360,127.99
  6. Step 6: Final answer
    x = 161,091.20

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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.