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Finding the Fourth Proportional to 535,163.20, 802,744.80 and 141,179.20

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Solution

The fourth proportional to 535,163.20, 802,744.80 and 141,179.20 is: 211,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,163.20 : 802,744.80 = 141,179.20 : x
  2. Step 2: Convert to fraction form
    535,163.20/802,744.80 = 141,179.20/x
  3. Step 3: Cross multiply
    535,163.20x = 802,744.80 × 141,179.20
  4. Step 4: Simplify right side
    535,163.20x = 113,330,868,668.16
  5. Step 5: Solve for x
    x = 113,330,868,668.16/535,163.20
  6. Step 6: Final answer
    x = 211,768.80

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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.