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Finding the Fourth Proportional to 205,149.60, 307,578.60 and 92,883.60

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Solution

The fourth proportional to 205,149.60, 307,578.60 and 92,883.60 is: 139,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,149.60 : 307,578.60 = 92,883.60 : x
  2. Step 2: Convert to fraction form
    205,149.60/307,578.60 = 92,883.60/x
  3. Step 3: Cross multiply
    205,149.60x = 307,578.60 × 92,883.60
  4. Step 4: Simplify right side
    205,149.60x = 28,569,007,650.96
  5. Step 5: Solve for x
    x = 28,569,007,650.96/205,149.60
  6. Step 6: Final answer
    x = 139,259.39

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1.5x scale

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.