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Finding the Fourth Proportional to 202,021.29, 303,031.94 and 61,779.92

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Solution

The fourth proportional to 202,021.29, 303,031.94 and 61,779.92 is: 92,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,021.29 : 303,031.94 = 61,779.92 : x
  2. Step 2: Convert to fraction form
    202,021.29/303,031.94 = 61,779.92/x
  3. Step 3: Cross multiply
    202,021.29x = 303,031.94 × 61,779.92
  4. Step 4: Simplify right side
    202,021.29x = 18,721,287,186.59
  5. Step 5: Solve for x
    x = 18,721,287,186.59/202,021.29
  6. Step 6: Final answer
    x = 92,669.87

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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.