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Finding the Fourth Proportional to 202,834.80, 304,252.20 and 69,703.20

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Solution

The fourth proportional to 202,834.80, 304,252.20 and 69,703.20 is: 104,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,834.80 : 304,252.20 = 69,703.20 : x
  2. Step 2: Convert to fraction form
    202,834.80/304,252.20 = 69,703.20/x
  3. Step 3: Cross multiply
    202,834.80x = 304,252.20 × 69,703.20
  4. Step 4: Simplify right side
    202,834.80x = 21,207,351,947.04
  5. Step 5: Solve for x
    x = 21,207,351,947.04/202,834.80
  6. Step 6: Final answer
    x = 104,554.80

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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.