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Finding the Fourth Proportional to 79,900.43, 119,819.51 and 29,953.28

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Solution

The fourth proportional to 79,900.43, 119,819.51 and 29,953.28 is: 44,918.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,900.43 : 119,819.51 = 29,953.28 : x
  2. Step 2: Convert to fraction form
    79,900.43/119,819.51 = 29,953.28/x
  3. Step 3: Cross multiply
    79,900.43x = 119,819.51 × 29,953.28
  4. Step 4: Simplify right side
    79,900.43x = 3,588,987,332.49
  5. Step 5: Solve for x
    x = 3,588,987,332.49/79,900.43
  6. Step 6: Final answer
    x = 44,918.25

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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.