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Finding the Fourth Proportional to 52,730.60, 78,999.90 and 41,709.80

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Solution

The fourth proportional to 52,730.60, 78,999.90 and 41,709.80 is: 62,488.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,730.60 : 78,999.90 = 41,709.80 : x
  2. Step 2: Convert to fraction form
    52,730.60/78,999.90 = 41,709.80/x
  3. Step 3: Cross multiply
    52,730.60x = 78,999.90 × 41,709.80
  4. Step 4: Simplify right side
    52,730.60x = 3,295,070,029.02
  5. Step 5: Solve for x
    x = 3,295,070,029.02/52,730.60
  6. Step 6: Final answer
    x = 62,488.76

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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.