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Finding the Fourth Proportional to 103,302.80, 154,997.40 and 33,203.60

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Solution

The fourth proportional to 103,302.80, 154,997.40 and 33,203.60 is: 49,819.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,302.80 : 154,997.40 = 33,203.60 : x
  2. Step 2: Convert to fraction form
    103,302.80/154,997.40 = 33,203.60/x
  3. Step 3: Cross multiply
    103,302.80x = 154,997.40 × 33,203.60
  4. Step 4: Simplify right side
    103,302.80x = 5,146,471,670.64
  5. Step 5: Solve for x
    x = 5,146,471,670.64/103,302.80
  6. Step 6: Final answer
    x = 49,819.29

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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.