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Finding the Fourth Proportional to 142,498.80, 213,767.40 and 49,033.20

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Solution

The fourth proportional to 142,498.80, 213,767.40 and 49,033.20 is: 73,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,498.80 : 213,767.40 = 49,033.20 : x
  2. Step 2: Convert to fraction form
    142,498.80/213,767.40 = 49,033.20/x
  3. Step 3: Cross multiply
    142,498.80x = 213,767.40 × 49,033.20
  4. Step 4: Simplify right side
    142,498.80x = 10,481,699,677.68
  5. Step 5: Solve for x
    x = 10,481,699,677.68/142,498.80
  6. Step 6: Final answer
    x = 73,556.41

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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.