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Finding the Fourth Proportional to 202,957.65, 304,436.88 and 69,839.42

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Solution

The fourth proportional to 202,957.65, 304,436.88 and 69,839.42 is: 104,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,957.65 : 304,436.88 = 69,839.42 : x
  2. Step 2: Convert to fraction form
    202,957.65/304,436.88 = 69,839.42/x
  3. Step 3: Cross multiply
    202,957.65x = 304,436.88 × 69,839.42
  4. Step 4: Simplify right side
    202,957.65x = 21,261,693,603.63
  5. Step 5: Solve for x
    x = 21,261,693,603.63/202,957.65
  6. Step 6: Final answer
    x = 104,759.26

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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.