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Finding the Fourth Proportional to 122,446.80, 183,206.52 and 72,553.68

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Solution

The fourth proportional to 122,446.80, 183,206.52 and 72,553.68 is: 108,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,446.80 : 183,206.52 = 72,553.68 : x
  2. Step 2: Convert to fraction form
    122,446.80/183,206.52 = 72,553.68/x
  3. Step 3: Cross multiply
    122,446.80x = 183,206.52 × 72,553.68
  4. Step 4: Simplify right side
    122,446.80x = 13,292,307,225.99
  5. Step 5: Solve for x
    x = 13,292,307,225.99/122,446.80
  6. Step 6: Final answer
    x = 108,555.77

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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.