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Finding the Fourth Proportional to 192,189.90, 288,050.88 and 136,045.92

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Solution

The fourth proportional to 192,189.90, 288,050.88 and 136,045.92 is: 203,903.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,189.90 : 288,050.88 = 136,045.92 : x
  2. Step 2: Convert to fraction form
    192,189.90/288,050.88 = 136,045.92/x
  3. Step 3: Cross multiply
    192,189.90x = 288,050.88 × 136,045.92
  4. Step 4: Simplify right side
    192,189.90x = 39,188,146,976.41
  5. Step 5: Solve for x
    x = 39,188,146,976.41/192,189.90
  6. Step 6: Final answer
    x = 203,903.26

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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.