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Finding the Fourth Proportional to 395,865.20, 593,797.80 and 96,343.40

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Solution

The fourth proportional to 395,865.20, 593,797.80 and 96,343.40 is: 144,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,865.20 : 593,797.80 = 96,343.40 : x
  2. Step 2: Convert to fraction form
    395,865.20/593,797.80 = 96,343.40/x
  3. Step 3: Cross multiply
    395,865.20x = 593,797.80 × 96,343.40
  4. Step 4: Simplify right side
    395,865.20x = 57,208,498,964.52
  5. Step 5: Solve for x
    x = 57,208,498,964.52/395,865.20
  6. Step 6: Final answer
    x = 144,515.10

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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.