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Finding the Fourth Proportional to 205,577.60, 308,220.60 and 93,311.60

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Solution

The fourth proportional to 205,577.60, 308,220.60 and 93,311.60 is: 139,901.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,577.60 : 308,220.60 = 93,311.60 : x
  2. Step 2: Convert to fraction form
    205,577.60/308,220.60 = 93,311.60/x
  3. Step 3: Cross multiply
    205,577.60x = 308,220.60 × 93,311.60
  4. Step 4: Simplify right side
    205,577.60x = 28,760,557,338.96
  5. Step 5: Solve for x
    x = 28,760,557,338.96/205,577.60
  6. Step 6: Final answer
    x = 139,901.22

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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.