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Finding the Fourth Proportional to 183,757.61, 253,611.72 and 103,190.64

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Solution

The fourth proportional to 183,757.61, 253,611.72 and 103,190.64 is: 142,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,757.61 : 253,611.72 = 103,190.64 : x
  2. Step 2: Convert to fraction form
    183,757.61/253,611.72 = 103,190.64/x
  3. Step 3: Cross multiply
    183,757.61x = 253,611.72 × 103,190.64
  4. Step 4: Simplify right side
    183,757.61x = 26,170,355,698.30
  5. Step 5: Solve for x
    x = 26,170,355,698.30/183,757.61
  6. Step 6: Final answer
    x = 142,417.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.