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Finding the Fourth Proportional to 122,645.40, 184,096.76 and 108,694.68

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Solution

The fourth proportional to 122,645.40, 184,096.76 and 108,694.68 is: 163,156.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,645.40 : 184,096.76 = 108,694.68 : x
  2. Step 2: Convert to fraction form
    122,645.40/184,096.76 = 108,694.68/x
  3. Step 3: Cross multiply
    122,645.40x = 184,096.76 × 108,694.68
  4. Step 4: Simplify right side
    122,645.40x = 20,010,338,417.24
  5. Step 5: Solve for x
    x = 20,010,338,417.24/122,645.40
  6. Step 6: Final answer
    x = 163,156.05

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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.