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Finding the Fourth Proportional to 159,196.58, 219,686.68 and 87,576.62

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Solution

The fourth proportional to 159,196.58, 219,686.68 and 87,576.62 is: 120,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,196.58 : 219,686.68 = 87,576.62 : x
  2. Step 2: Convert to fraction form
    159,196.58/219,686.68 = 87,576.62/x
  3. Step 3: Cross multiply
    159,196.58x = 219,686.68 × 87,576.62
  4. Step 4: Simplify right side
    159,196.58x = 19,239,415,576.05
  5. Step 5: Solve for x
    x = 19,239,415,576.05/159,196.58
  6. Step 6: Final answer
    x = 120,853.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.