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Finding the Fourth Proportional to 159,371.59, 239,001.66 and 47,021.98

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Solution

The fourth proportional to 159,371.59, 239,001.66 and 47,021.98 is: 70,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,371.59 : 239,001.66 = 47,021.98 : x
  2. Step 2: Convert to fraction form
    159,371.59/239,001.66 = 47,021.98/x
  3. Step 3: Cross multiply
    159,371.59x = 239,001.66 × 47,021.98
  4. Step 4: Simplify right side
    159,371.59x = 11,238,331,276.49
  5. Step 5: Solve for x
    x = 11,238,331,276.49/159,371.59
  6. Step 6: Final answer
    x = 70,516.53

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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.