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Finding the Fourth Proportional to 159,482.79, 239,246.05 and 47,171.83

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Solution

The fourth proportional to 159,482.79, 239,246.05 and 47,171.83 is: 70,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482.79 : 239,246.05 = 47,171.83 : x
  2. Step 2: Convert to fraction form
    159,482.79/239,246.05 = 47,171.83/x
  3. Step 3: Cross multiply
    159,482.79x = 239,246.05 × 47,171.83
  4. Step 4: Simplify right side
    159,482.79x = 11,285,673,998.77
  5. Step 5: Solve for x
    x = 11,285,673,998.77/159,482.79
  6. Step 6: Final answer
    x = 70,764.21

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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.