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Finding the Fourth Proportional to 159,617.27, 239,428.26 and 47,308.88

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Solution

The fourth proportional to 159,617.27, 239,428.26 and 47,308.88 is: 70,964.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,617.27 : 239,428.26 = 47,308.88 : x
  2. Step 2: Convert to fraction form
    159,617.27/239,428.26 = 47,308.88/x
  3. Step 3: Cross multiply
    159,617.27x = 239,428.26 × 47,308.88
  4. Step 4: Simplify right side
    159,617.27x = 11,327,081,623.81
  5. Step 5: Solve for x
    x = 11,327,081,623.81/159,617.27
  6. Step 6: Final answer
    x = 70,964.01

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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.