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Finding the Fourth Proportional to 101,855.30, 152,722.20 and 62,440.70

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Solution

The fourth proportional to 101,855.30, 152,722.20 and 62,440.70 is: 93,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,855.30 : 152,722.20 = 62,440.70 : x
  2. Step 2: Convert to fraction form
    101,855.30/152,722.20 = 62,440.70/x
  3. Step 3: Cross multiply
    101,855.30x = 152,722.20 × 62,440.70
  4. Step 4: Simplify right side
    101,855.30x = 9,536,081,073.54
  5. Step 5: Solve for x
    x = 9,536,081,073.54/101,855.30
  6. Step 6: Final answer
    x = 93,623.81

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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.