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Finding the Fourth Proportional to 192,638.90, 288,989.22 and 59,487.86

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Solution

The fourth proportional to 192,638.90, 288,989.22 and 59,487.86 is: 89,241.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,638.90 : 288,989.22 = 59,487.86 : x
  2. Step 2: Convert to fraction form
    192,638.90/288,989.22 = 59,487.86/x
  3. Step 3: Cross multiply
    192,638.90x = 288,989.22 × 59,487.86
  4. Step 4: Simplify right side
    192,638.90x = 17,191,350,260.87
  5. Step 5: Solve for x
    x = 17,191,350,260.87/192,638.90
  6. Step 6: Final answer
    x = 89,241.32

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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.