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Finding the Fourth Proportional to 122,751.31, 183,730.96 and 63,505.39

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Solution

The fourth proportional to 122,751.31, 183,730.96 and 63,505.39 is: 95,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,751.31 : 183,730.96 = 63,505.39 : x
  2. Step 2: Convert to fraction form
    122,751.31/183,730.96 = 63,505.39/x
  3. Step 3: Cross multiply
    122,751.31x = 183,730.96 × 63,505.39
  4. Step 4: Simplify right side
    122,751.31x = 11,667,906,269.87
  5. Step 5: Solve for x
    x = 11,667,906,269.87/122,751.31
  6. Step 6: Final answer
    x = 95,053.21

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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.