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Finding the Fourth Proportional to 103,475.10, 155,239.65 and 33,356.10

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Solution

The fourth proportional to 103,475.10, 155,239.65 and 33,356.10 is: 50,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,475.10 : 155,239.65 = 33,356.10 : x
  2. Step 2: Convert to fraction form
    103,475.10/155,239.65 = 33,356.10/x
  3. Step 3: Cross multiply
    103,475.10x = 155,239.65 × 33,356.10
  4. Step 4: Simplify right side
    103,475.10x = 5,178,189,289.37
  5. Step 5: Solve for x
    x = 5,178,189,289.37/103,475.10
  6. Step 6: Final answer
    x = 50,042.85

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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.