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Finding the Fourth Proportional to 147,416.20, 220,468.20 and 123,796.60

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Solution

The fourth proportional to 147,416.20, 220,468.20 and 123,796.60 is: 185,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,416.20 : 220,468.20 = 123,796.60 : x
  2. Step 2: Convert to fraction form
    147,416.20/220,468.20 = 123,796.60/x
  3. Step 3: Cross multiply
    147,416.20x = 220,468.20 × 123,796.60
  4. Step 4: Simplify right side
    147,416.20x = 27,293,213,568.12
  5. Step 5: Solve for x
    x = 27,293,213,568.12/147,416.20
  6. Step 6: Final answer
    x = 185,143.92

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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.