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Finding the Fourth Proportional to 192,498.70, 288,554.16 and 80,241.06

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Solution

The fourth proportional to 192,498.70, 288,554.16 and 80,241.06 is: 120,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,498.70 : 288,554.16 = 80,241.06 : x
  2. Step 2: Convert to fraction form
    192,498.70/288,554.16 = 80,241.06/x
  3. Step 3: Cross multiply
    192,498.70x = 288,554.16 × 80,241.06
  4. Step 4: Simplify right side
    192,498.70x = 23,153,891,665.81
  5. Step 5: Solve for x
    x = 23,153,891,665.81/192,498.70
  6. Step 6: Final answer
    x = 120,280.77

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1.5x scale

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.