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Finding the Fourth Proportional to 247,218.54, 370,336.49 and 120,489.27

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Solution

The fourth proportional to 247,218.54, 370,336.49 and 120,489.27 is: 180,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,218.54 : 370,336.49 = 120,489.27 : x
  2. Step 2: Convert to fraction form
    247,218.54/370,336.49 = 120,489.27/x
  3. Step 3: Cross multiply
    247,218.54x = 370,336.49 × 120,489.27
  4. Step 4: Simplify right side
    247,218.54x = 44,621,573,334.46
  5. Step 5: Solve for x
    x = 44,621,573,334.46/247,218.54
  6. Step 6: Final answer
    x = 180,494.45

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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.