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Finding the Fourth Proportional to 192,002.60, 288,003.90 and 145,346.60

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Solution

The fourth proportional to 192,002.60, 288,003.90 and 145,346.60 is: 218,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,002.60 : 288,003.90 = 145,346.60 : x
  2. Step 2: Convert to fraction form
    192,002.60/288,003.90 = 145,346.60/x
  3. Step 3: Cross multiply
    192,002.60x = 288,003.90 × 145,346.60
  4. Step 4: Simplify right side
    192,002.60x = 41,860,387,651.74
  5. Step 5: Solve for x
    x = 41,860,387,651.74/192,002.60
  6. Step 6: Final answer
    x = 218,019.90

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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.