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Finding the Fourth Proportional to 243,321.60, 335,591.04 and 147,825.60

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Solution

The fourth proportional to 243,321.60, 335,591.04 and 147,825.60 is: 203,882.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,321.60 : 335,591.04 = 147,825.60 : x
  2. Step 2: Convert to fraction form
    243,321.60/335,591.04 = 147,825.60/x
  3. Step 3: Cross multiply
    243,321.60x = 335,591.04 × 147,825.60
  4. Step 4: Simplify right side
    243,321.60x = 49,608,946,842.62
  5. Step 5: Solve for x
    x = 49,608,946,842.62/243,321.60
  6. Step 6: Final answer
    x = 203,882.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.