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Finding the Fourth Proportional to 252,493.79, 378,740.22 and 147,238.94

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Solution

The fourth proportional to 252,493.79, 378,740.22 and 147,238.94 is: 220,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,493.79 : 378,740.22 = 147,238.94 : x
  2. Step 2: Convert to fraction form
    252,493.79/378,740.22 = 147,238.94/x
  3. Step 3: Cross multiply
    252,493.79x = 378,740.22 × 147,238.94
  4. Step 4: Simplify right side
    252,493.79x = 55,765,306,634.47
  5. Step 5: Solve for x
    x = 55,765,306,634.47/252,493.79
  6. Step 6: Final answer
    x = 220,858.14

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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.