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Finding the Fourth Proportional to 202,111.30, 303,166.95 and 61,851.70

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Solution

The fourth proportional to 202,111.30, 303,166.95 and 61,851.70 is: 92,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,111.30 : 303,166.95 = 61,851.70 : x
  2. Step 2: Convert to fraction form
    202,111.30/303,166.95 = 61,851.70/x
  3. Step 3: Cross multiply
    202,111.30x = 303,166.95 × 61,851.70
  4. Step 4: Simplify right side
    202,111.30x = 18,751,391,241.32
  5. Step 5: Solve for x
    x = 18,751,391,241.32/202,111.30
  6. Step 6: Final answer
    x = 92,777.55

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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.