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Finding the Fourth Proportional to 183,611.72, 253,326.42 and 103,027.40

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Solution

The fourth proportional to 183,611.72, 253,326.42 and 103,027.40 is: 142,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,611.72 : 253,326.42 = 103,027.40 : x
  2. Step 2: Convert to fraction form
    183,611.72/253,326.42 = 103,027.40/x
  3. Step 3: Cross multiply
    183,611.72x = 253,326.42 × 103,027.40
  4. Step 4: Simplify right side
    183,611.72x = 26,099,562,403.91
  5. Step 5: Solve for x
    x = 26,099,562,403.91/183,611.72
  6. Step 6: Final answer
    x = 142,145.41

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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.