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Finding the Fourth Proportional to 159,722.21, 239,555.21 and 58,499.35

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Solution

The fourth proportional to 159,722.21, 239,555.21 and 58,499.35 is: 87,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,722.21 : 239,555.21 = 58,499.35 : x
  2. Step 2: Convert to fraction form
    159,722.21/239,555.21 = 58,499.35/x
  3. Step 3: Cross multiply
    159,722.21x = 239,555.21 × 58,499.35
  4. Step 4: Simplify right side
    159,722.21x = 14,013,822,583.84
  5. Step 5: Solve for x
    x = 14,013,822,583.84/159,722.21
  6. Step 6: Final answer
    x = 87,738.72

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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.