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Finding the Fourth Proportional to 202,055.20, 303,083.76 and 61,813.60

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Solution

The fourth proportional to 202,055.20, 303,083.76 and 61,813.60 is: 92,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,055.20 : 303,083.76 = 61,813.60 : x
  2. Step 2: Convert to fraction form
    202,055.20/303,083.76 = 61,813.60/x
  3. Step 3: Cross multiply
    202,055.20x = 303,083.76 × 61,813.60
  4. Step 4: Simplify right side
    202,055.20x = 18,734,698,307.14
  5. Step 5: Solve for x
    x = 18,734,698,307.14/202,055.20
  6. Step 6: Final answer
    x = 92,720.69

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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.