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Finding the Fourth Proportional to 135,752.46, 203,815.02 and 69,237.42

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Solution

The fourth proportional to 135,752.46, 203,815.02 and 69,237.42 is: 103,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,752.46 : 203,815.02 = 69,237.42 : x
  2. Step 2: Convert to fraction form
    135,752.46/203,815.02 = 69,237.42/x
  3. Step 3: Cross multiply
    135,752.46x = 203,815.02 × 69,237.42
  4. Step 4: Simplify right side
    135,752.46x = 14,111,626,142.05
  5. Step 5: Solve for x
    x = 14,111,626,142.05/135,752.46
  6. Step 6: Final answer
    x = 103,951.16

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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.