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Finding the Fourth Proportional to 192,124.60, 288,186.90 and 98,812.60

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Solution

The fourth proportional to 192,124.60, 288,186.90 and 98,812.60 is: 148,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,124.60 : 288,186.90 = 98,812.60 : x
  2. Step 2: Convert to fraction form
    192,124.60/288,186.90 = 98,812.60/x
  3. Step 3: Cross multiply
    192,124.60x = 288,186.90 × 98,812.60
  4. Step 4: Simplify right side
    192,124.60x = 28,476,496,874.94
  5. Step 5: Solve for x
    x = 28,476,496,874.94/192,124.60
  6. Step 6: Final answer
    x = 148,218.90

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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.