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Finding the Fourth Proportional to 202,403.10, 303,799.05 and 102,675.90

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Solution

The fourth proportional to 202,403.10, 303,799.05 and 102,675.90 is: 154,112.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,403.10 : 303,799.05 = 102,675.90 : x
  2. Step 2: Convert to fraction form
    202,403.10/303,799.05 = 102,675.90/x
  3. Step 3: Cross multiply
    202,403.10x = 303,799.05 × 102,675.90
  4. Step 4: Simplify right side
    202,403.10x = 31,192,840,877.90
  5. Step 5: Solve for x
    x = 31,192,840,877.90/202,403.10
  6. Step 6: Final answer
    x = 154,112.47

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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.