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Finding the Fourth Proportional to 151,631.20, 227,101.20 and 89,423.20

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Solution

The fourth proportional to 151,631.20, 227,101.20 and 89,423.20 is: 133,930.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,631.20 : 227,101.20 = 89,423.20 : x
  2. Step 2: Convert to fraction form
    151,631.20/227,101.20 = 89,423.20/x
  3. Step 3: Cross multiply
    151,631.20x = 227,101.20 × 89,423.20
  4. Step 4: Simplify right side
    151,631.20x = 20,308,116,027.84
  5. Step 5: Solve for x
    x = 20,308,116,027.84/151,631.20
  6. Step 6: Final answer
    x = 133,930.99

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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.