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Finding the Fourth Proportional to 151,754.40, 227,631.60 and 72,849.60

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Solution

The fourth proportional to 151,754.40, 227,631.60 and 72,849.60 is: 109,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,754.40 : 227,631.60 = 72,849.60 : x
  2. Step 2: Convert to fraction form
    151,754.40/227,631.60 = 72,849.60/x
  3. Step 3: Cross multiply
    151,754.40x = 227,631.60 × 72,849.60
  4. Step 4: Simplify right side
    151,754.40x = 16,582,871,007.36
  5. Step 5: Solve for x
    x = 16,582,871,007.36/151,754.40
  6. Step 6: Final answer
    x = 109,274.40

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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.