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Finding the Fourth Proportional to 192,467.40, 287,217.30 and 169,144.08

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Solution

The fourth proportional to 192,467.40, 287,217.30 and 169,144.08 is: 252,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,467.40 : 287,217.30 = 169,144.08 : x
  2. Step 2: Convert to fraction form
    192,467.40/287,217.30 = 169,144.08/x
  3. Step 3: Cross multiply
    192,467.40x = 287,217.30 × 169,144.08
  4. Step 4: Simplify right side
    192,467.40x = 48,581,105,968.58
  5. Step 5: Solve for x
    x = 48,581,105,968.58/192,467.40
  6. Step 6: Final answer
    x = 252,412.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.