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Finding the Fourth Proportional to 159,732.66, 239,573.59 and 53,107.76

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Solution

The fourth proportional to 159,732.66, 239,573.59 and 53,107.76 is: 79,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,732.66 : 239,573.59 = 53,107.76 : x
  2. Step 2: Convert to fraction form
    159,732.66/239,573.59 = 53,107.76/x
  3. Step 3: Cross multiply
    159,732.66x = 239,573.59 × 53,107.76
  4. Step 4: Simplify right side
    159,732.66x = 12,723,216,720.06
  5. Step 5: Solve for x
    x = 12,723,216,720.06/159,732.66
  6. Step 6: Final answer
    x = 79,653.20

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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.