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Finding the Fourth Proportional to 163,529.20, 245,301.90 and 84,797.20

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Solution

The fourth proportional to 163,529.20, 245,301.90 and 84,797.20 is: 127,200.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,529.20 : 245,301.90 = 84,797.20 : x
  2. Step 2: Convert to fraction form
    163,529.20/245,301.90 = 84,797.20/x
  3. Step 3: Cross multiply
    163,529.20x = 245,301.90 × 84,797.20
  4. Step 4: Simplify right side
    163,529.20x = 20,800,914,274.68
  5. Step 5: Solve for x
    x = 20,800,914,274.68/163,529.20
  6. Step 6: Final answer
    x = 127,200.00

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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.