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Finding the Fourth Proportional to 123,496.80, 185,245.20 and 122,184.60

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Solution

The fourth proportional to 123,496.80, 185,245.20 and 122,184.60 is: 183,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,496.80 : 185,245.20 = 122,184.60 : x
  2. Step 2: Convert to fraction form
    123,496.80/185,245.20 = 122,184.60/x
  3. Step 3: Cross multiply
    123,496.80x = 185,245.20 × 122,184.60
  4. Step 4: Simplify right side
    123,496.80x = 22,634,110,663.92
  5. Step 5: Solve for x
    x = 22,634,110,663.92/123,496.80
  6. Step 6: Final answer
    x = 183,276.90

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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.