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Finding the Fourth Proportional to 192,391.80, 287,178.82 and 169,666.62

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Solution

The fourth proportional to 192,391.80, 287,178.82 and 169,666.62 is: 253,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,391.80 : 287,178.82 = 169,666.62 : x
  2. Step 2: Convert to fraction form
    192,391.80/287,178.82 = 169,666.62/x
  3. Step 3: Cross multiply
    192,391.80x = 287,178.82 × 169,666.62
  4. Step 4: Simplify right side
    192,391.80x = 48,724,659,724.99
  5. Step 5: Solve for x
    x = 48,724,659,724.99/192,391.80
  6. Step 6: Final answer
    x = 253,257.47

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1.5x scale

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.