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Finding the Fourth Proportional to 103,199.36, 154,820.90 and 33,127.88

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Solution

The fourth proportional to 103,199.36, 154,820.90 and 33,127.88 is: 49,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,199.36 : 154,820.90 = 33,127.88 : x
  2. Step 2: Convert to fraction form
    103,199.36/154,820.90 = 33,127.88/x
  3. Step 3: Cross multiply
    103,199.36x = 154,820.90 × 33,127.88
  4. Step 4: Simplify right side
    103,199.36x = 5,128,887,256.95
  5. Step 5: Solve for x
    x = 5,128,887,256.95/103,199.36
  6. Step 6: Final answer
    x = 49,698.83

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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.