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Finding the Fourth Proportional to 192,086.40, 288,172.80 and 58,972.80

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Solution

The fourth proportional to 192,086.40, 288,172.80 and 58,972.80 is: 88,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,086.40 : 288,172.80 = 58,972.80 : x
  2. Step 2: Convert to fraction form
    192,086.40/288,172.80 = 58,972.80/x
  3. Step 3: Cross multiply
    192,086.40x = 288,172.80 × 58,972.80
  4. Step 4: Simplify right side
    192,086.40x = 16,994,356,899.84
  5. Step 5: Solve for x
    x = 16,994,356,899.84/192,086.40
  6. Step 6: Final answer
    x = 88,472.46

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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.