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Finding the Fourth Proportional to 192,232.89, 288,493.65 and 72,408.06

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Solution

The fourth proportional to 192,232.89, 288,493.65 and 72,408.06 is: 108,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,232.89 : 288,493.65 = 72,408.06 : x
  2. Step 2: Convert to fraction form
    192,232.89/288,493.65 = 72,408.06/x
  3. Step 3: Cross multiply
    192,232.89x = 288,493.65 × 72,408.06
  4. Step 4: Simplify right side
    192,232.89x = 20,889,265,518.82
  5. Step 5: Solve for x
    x = 20,889,265,518.82/192,232.89
  6. Step 6: Final answer
    x = 108,666.45

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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.