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Finding the Fourth Proportional to 159,087.40, 238,631.10 and 151,311.40

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Solution

The fourth proportional to 159,087.40, 238,631.10 and 151,311.40 is: 226,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,087.40 : 238,631.10 = 151,311.40 : x
  2. Step 2: Convert to fraction form
    159,087.40/238,631.10 = 151,311.40/x
  3. Step 3: Cross multiply
    159,087.40x = 238,631.10 × 151,311.40
  4. Step 4: Simplify right side
    159,087.40x = 36,107,605,824.54
  5. Step 5: Solve for x
    x = 36,107,605,824.54/159,087.40
  6. Step 6: Final answer
    x = 226,967.10

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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.