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Finding the Fourth Proportional to 202,047.90, 303,071.85 and 61,806.30

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Solution

The fourth proportional to 202,047.90, 303,071.85 and 61,806.30 is: 92,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,047.90 : 303,071.85 = 61,806.30 : x
  2. Step 2: Convert to fraction form
    202,047.90/303,071.85 = 61,806.30/x
  3. Step 3: Cross multiply
    202,047.90x = 303,071.85 × 61,806.30
  4. Step 4: Simplify right side
    202,047.90x = 18,731,749,682.66
  5. Step 5: Solve for x
    x = 18,731,749,682.66/202,047.90
  6. Step 6: Final answer
    x = 92,709.45

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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.