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Finding the Fourth Proportional to 192,051.70, 288,207.15 and 125,329.30

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Solution

The fourth proportional to 192,051.70, 288,207.15 and 125,329.30 is: 188,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,051.70 : 288,207.15 = 125,329.30 : x
  2. Step 2: Convert to fraction form
    192,051.70/288,207.15 = 125,329.30/x
  3. Step 3: Cross multiply
    192,051.70x = 288,207.15 × 125,329.30
  4. Step 4: Simplify right side
    192,051.70x = 36,120,800,364.50
  5. Step 5: Solve for x
    x = 36,120,800,364.50/192,051.70
  6. Step 6: Final answer
    x = 188,078.52

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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.