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Finding the Fourth Proportional to 78,999.35, 118,474.92 and 41,539.10

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Solution

The fourth proportional to 78,999.35, 118,474.92 and 41,539.10 is: 62,295.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,999.35 : 118,474.92 = 41,539.10 : x
  2. Step 2: Convert to fraction form
    78,999.35/118,474.92 = 41,539.10/x
  3. Step 3: Cross multiply
    78,999.35x = 118,474.92 × 41,539.10
  4. Step 4: Simplify right side
    78,999.35x = 4,921,340,957.00
  5. Step 5: Solve for x
    x = 4,921,340,957.00/78,999.35
  6. Step 6: Final answer
    x = 62,295.97

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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.