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Finding the Fourth Proportional to 192,611.20, 288,938.40 and 59,490.40

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Solution

The fourth proportional to 192,611.20, 288,938.40 and 59,490.40 is: 89,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,611.20 : 288,938.40 = 59,490.40 : x
  2. Step 2: Convert to fraction form
    192,611.20/288,938.40 = 59,490.40/x
  3. Step 3: Cross multiply
    192,611.20x = 288,938.40 × 59,490.40
  4. Step 4: Simplify right side
    192,611.20x = 17,189,060,991.36
  5. Step 5: Solve for x
    x = 17,189,060,991.36/192,611.20
  6. Step 6: Final answer
    x = 89,242.27

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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.